Patent
Suchergebnisse für: ABACUS
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Patent:GB189403834
24.03.1894 Furrer, Alfred (P) : An improved money abacus [46.70%]
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Patent:GB189811645
08.08.1889 Raphael Kabalkin : An Improved Abacus or Instrument for Rapid Calculation [47.68%]
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Patent:GB189900692
18.02.1899 George Bower Froom : A New or Improved Abacus or Device for use in Calculating and for like Purposes [47.19%]
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Patent:GB190325109
27.10.1904 Baines, Hewley Mortimer (P) : Improvements in Slide Rules and like Calculating Apparatus [50.38%]
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Patent:GB190414716
04.05.1905 Wolodarsky, Hirsh (P) : An Improved Counting Frame or Apparatus [11.09%]
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Patent:GB190425302
21.09.1905 James Thomas Reeve : An Improved Abacus or Apparatus chiefly designed for use in Teaching Arithmetic [45.76%]
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Patent:GB191317890
05.08.1913 Montessori, Maria (P) : Abacuses [18.05%]
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Patent:GB214142
17.04.1924 Lyadoff, Peter (P) : Improvements in or relating to calculating apparatus [12.40%]
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Patent:GB2364412
23.01.2002 Stone Celia Anne : Abacus [47.26%]
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Patent:GB343323
19.02.1931 Hugo Jung : Improvements in and relating to beads or counters for abacuses [12.05%]
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Patent:GB359210
22.10.1931 Sarah Weaver Stephens : Improved apparatus for teaching calculations to children and for like [28.76%]
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Patent:GB370060
07.04.1932 John James : Apparatus for teaching arithmetic [47.43%]
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Patent:GB580444
09.09.1946 Samuel Lindon : An improved counting device [18.10%]
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Patent:GB587220
17.04.1947 Lancelot Hogben : Apparatus for the use in the teaching of arithmetic operations [18.35%]
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Patent:GB665938
06.09.1949 Debogorski, Julian (P) : Adding And Subtracting Instrument for British Montary and Weight Units [27.95%]
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Patent:GB732266
22.06.1955 Kosma Pawlow : An improved abacus [49.24%]
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Patent:JP1018176
20.01.1989 Tagaito Shigeru Sharp (P) Corp : Abacus Practicing Machine [47.19%]
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Patent:JP10187023
14.07.1998 Suzuki Satoshi, Kanamaki Youichirou : Training Device For Metal Arithmetic Using Abacus [26.14%]
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Patent:JP11119896
30.04.1999 Hirai Yoshihiro : Abacus Type Input Device, Abacus Practice Device, And Network Of The Same [65.46%]
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Patent:JP1206421
18.08.1989 Haraguchi Masashi : Electric Digital Signal Converting System For Numeric Value On Abacus [46.22%]
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Patent:JP2001142556
25.05.2001 Kudo Kazunori : Abacus With Doll [48.71%]
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Patent:JP2001175159
29.06.2001 Kono Takeshi Tomoe (P) Soroban Co Ltd : Abacus Type Mental Calculation Training Implement [45.76%]
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Patent:JP2002014606
18.01.2002 Yamada Toshibumi, Miyamoto Yasushi : Abacus Type Input Device, Abacus Education Device And Its Recording Medium, And Abacus Education System [74.94%]
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Patent:JP2002229436
14.08.2002 Suwa Masao Azul Web.Com Kk : Network System For Soroban (Japanese Abacus) [25.28%]
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Patent:JP2002258730
11.09.2002 Ishido Kenichi, Numata Kiyomi, Kanoto Yumi : Abacus Learning System [46.22%]
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Patent:JP2002263462
17.09.2002 Shiotani Yasumi Shinryo Corp : Mechanical Agitation Device For Abacus Bead Shaped Digester Chamber [44.85%]
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Patent:JP2002304228
18.10.2002 Mizutani Yoji : Three Bead Two Space Abacus [48.19%]
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Patent:JP2003015757
17.01.2003 Sekiguchi Toshiharu : Arithmetic Abacus [63.01%]
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Patent:JP2004073800
11.03.2004 Okada Yukitoshi : Manufacture Of Abacus Bead Pearl [61.26%]
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Patent:JP2110683
23.04.1990 Takashi Murai : Abacus Type Bar Code [25.44%]
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Patent:JP2127712
16.05.1990 Ooe Chizuko NEC (P) Corp : Soroban [60.01%]
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Patent:JP2159663
19.06.1990 Yoshinobu Sakuma : Digital Soroban (Abacus) [48.19%]
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Patent:JP3022116
30.01.1991 Tokunaga Takeshi : Abacus With Comma And Decimal Point [27.75%]
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Patent:JP3188483
16.08.1991 Aoki Yoshihiko Kuraray Co Ltd : Voice Generator For Outputting Abacus Question [44.61%]
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Patent:JP4096083
27.03.1992 Wakaguwa Akio Kuraray Co Ltd : Voice Generation Device For Abacus Calculation Problem [46.22%]
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Patent:JP4096084
27.03.1992 Wakaguwa Akio Kuraray Co Ltd : Voice Generation Device For Abacus Calculation Problem [46.22%]
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Patent:JP4096085
27.03.1992 Wakaguwa Akio Kuraray Co Ltd : Voice Generation Device For Abacus Calculation Problem [46.22%]
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Patent:JP4110986
13.04.1992 Wakaguwa Akio Kuraray Co Ltd : Voice Generator For Making Abacus Questions [46.70%]
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Patent:JP5142989
11.06.1993 Abe Tetsuya Tohoku Nippon Denki Software Kk : Abacus Calculation Device [24.52%]
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Patent:JP5313770
26.11.1993 Sato Atsuhiko : Japanese Abacus With Finger Exerciser [47.68%]
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Patent:JP55066019
19.05.1980 Takahashi Toshio : Abacus Type Electronic Desk Calculator [84.03%]
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Patent:JP55076417
09.06.1980 Wakatsuki Shinji : Japanese Abacus [54.05%]
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Patent:JP55082337
21.06.1980 Hatano Fujio : Abacus Type Desk Computer [47.68%]
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Patent:JP55087222
01.07.1980 Katano Haruyuki : Japanese Abacus [48.19%]
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Patent:JP55134468
20.10.1980 Morooka Koji : Digital Abacus [48.71%]
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Patent:JP55150024
21.11.1980 Yoshimaura Chikafusa : Japanese Abacus [55.25%]
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Patent:JP56029736
25.03.1981 Harada Yuji Canon (P) Inc : Electronic Japanese Abacus [67.80%]
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Patent:JP56068812
09.06.1981 Kinugawa Masayoshi : Japanese Abacus [48.71%]
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Patent:JP56076819
24.06.1981 Kawai Yasuto : Manufacture Of Japanese Abacus [48.19%]
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Patent:JP56111924
04.09.1981 Tomita Shitomi : Abacus [28.05%]
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Patent:JP56132618
17.10.1981 Higuchi Shigemitsu Hitachi (P) Ltd : Practice Device For Calculation On Abacus [47.19%]
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Patent:JP57036324
27.02.1982 Wakatsuki Shinji : Soroban Japanese Abacus [48.19%]
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Patent:JP57073431
08.05.1982 Wakatsuki Shinji : Recalculating Device Of Soroban (Japanese Abacus) [47.19%]
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Patent:JP57141730
02.09.1982 Wakatsuki Shinji : Abacus [49.24%]
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Patent:JP58096321
08.06.1983 Mitomi Kunimoto Mitomi Shiyuzan Kenkyusho : Abacus Provided With Stopwatch [43.81%]
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Patent:JP59022116
04.02.1984 Tatezawa Hiroshi : Electric Signal Output Device Of Abacus [47.19%]
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Patent:JP59038868
02.03.1984 Nomura Takeshi : Abacus Type Electronic Computer [47.68%]
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Patent:JP59053918
28.03.1984 Horikoshi Tatsuo Hitachi (P) Seisakusho Kk : Abacus Provided With Timer [69.51%]
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Patent:JP59153252
01.09.1984 Aoki Yasuhiro : Abacus Type Electronic Computer [59.84%]
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Patent:JP60068453
19.04.1985 Ootsuki Noboru : Abacus With Electronic Computer [74.95%]
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Patent:JP61009749
17.01.1986 Kojima Youichi Bijitetsuku : Abacus Data Processor [79.35%]
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Patent:JP61084717
30.04.1986 Nakamura Norio : Scaling Device Attached To Abacus [54.74%]
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Patent:JP61183724
16.08.1986 Wakatsuki Shinji Kiko Soroban Kk : Cancelling Device Of Soroban [46.19%]
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Patent:JP62085314
18.04.1987 Kawai Isato : Comma/Decimal Point Moving Device For Abacus [55.09%]
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Patent:JP62168215
24.07.1987 Ishioka Hiroyuki Shimadzu Corp : Electronic Calculator With Abacus [73.42%]
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Patent:JP63053619
07.03.1988 Watanabe Masahiko, Katsuhiko Shishido : Zeroing Device For Abacus [64.55%]
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Patent:JP63208992
30.08.1988 Murai Takashi : Abacus Type Code [48.19%]
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Patent:JP63273923
11.11.1988 Okochi Tsuneo Mitsubishi (P) Electric Corp : Abacus Type Calculator [80.26%]
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Patent:JP63278110
15.11.1988 Sasano Kiichi : Japanese Abacus Grooved To Scrape Finger Sebum [39.20%]
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Patent:JP7248719
26.09.1995 Ishii Yasuo : Game Type Abacus Training Card [46.70%]
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Patent:JP8305460
22.11.1996 Kato Susumu, Kato Koshi, Kato Hisako, Kato Tomohiro, Katou Youta : Training Machine For Mental Calculation Of Japanese Abacus [60.52%]
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Patent:JP9006456
10.01.1997 Kawasaki Hiroyuki, Shinchi Sangyo : Abacus [48.19%]
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Patent:US1029655
18.06.1912 Doichi Yadu : Automatic abacus [49.24%]
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Patent:US1081815
16.12.1913 José Miguel de la Rosa : Arithmetical abacus [48.19%]
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Patent:US1099009
02.06.1914 R. C. Bennet : Calculator or Abacus [11.78%]
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Patent:US1142651
08.06.1915 T. Winiecki : Educational Appliance [13.82%]
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Patent:US1441323
09.01.1923 A. J. Barber : Abacus Frame [37.45%]
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Patent:US1498121
17.06.1924 H. Rieck : Educational Appliance [12.99%]
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Patent:US1528049
03.03.1925 E. J. Fletcher : Chair [12.87%]
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Patent:US1863927
21.06.1932 K. Y. Konno : Calculating Device [24.48%]
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Patent:US2228554
14.01.1941 C. A. Brown : Abacus [29.36%]
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Patent:US232482
21.09.1880 H. Fitch : Calculators [18.29%]
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Patent:US2457332
28.12.1948 Wade, F. A. (P) et al : Educational Apparatus [26.56%]
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Patent:US2527080
24.10.1950 Rickard, R. E. (P) et al : Abacus [27.56%]
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Patent:US2646631
28.07.1953 Lazar, N. (P) : Combined Abacus and Counting Rack [30.24%]
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Patent:US2654164
06.10.1953 Seidenberg, O. (P) : Abacus [26.42%]
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Patent:US2655737
20.10.1953 Don Dero, S. F. (P) : Abacus [24.83%]
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Patent:US271749
06.02.1883 H. Steward : Abacus Attachement for School Slates [39.52%]
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Patent:US2733009
31.01.1956 Forbes, C. M., Jr. (P) : Abacus with Money Indicia thereon [36.87%]
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Patent:US2764822
02.10.1956 Morris Gurevitch Nina Gurevitch : Calculating appliance [7.02%]
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Patent:US2844890
29.07.1958 G. A. Oliver et al : Mathematics Teaching Aid [10.47%]
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Patent:US2857686
28.10.1958 S. Blake : Abacus [31.03%]
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Patent:US2872742
10.02.1959 A. F. Scott : Abacus with Magnetic Means for holding Unit Counters in Position [30.62%]
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Patent:US2887269
19.05.1959 Siegfried Reisch Olivetti and Co Spa : Electric pulse counting and calculating apparatus [10.56%]
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Patent:US2991008
04.07.1961 M. M. Goldberg : Computer Operating Means [22.33%]
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Patent:US3003256
10.10.1961 Allen L. Bernstein : Fraction-abacus [49.24%]
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Patent:US3076272
05.02.1963 A. F. Schott : Abacus [24.28%]
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Patent:US3092917
11.06.1963 H. I. Podell : Abacus [31.51%]
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Patent:US3151404
06.10.1964 Andrew F. Schott : Abacus [49.78%]
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Patent:US3283420
08.11.1966 Schott, Andrew (P) : Calculator [19.65%]
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Patent:US3387392
11.06.1968 D. A. Kurz : Abacus with Mechanical Means for Holding Unit Counters in Position [47.41%]
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Patent:US3446433
27.05.1969 Tibbetts, Ernest (P) Burroughs (P) : Pushbutton Calculator [20.65%]
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Patent:US345445
13.07.1886 C. Pelletier : Ball Calculator [30.35%]
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Patent:US3455034
15.07.1969 A. F. Schott : Mathematics Teaching Tool [31.71%]
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Patent:US3508348
28.04.1970 Kogane Harada : Magnetic Soroban [20.23%]
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Patent:US352218
09.11.1886 G. W. Bolton & C. H. Tillmeyer : Abacus [42.29%]
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Patent:US3688418
05.09.1972 Henry Allen Wilson : Manual Computing Device [35.84%]
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Patent:US3731401
08.05.1973 Tsuneji Kojima : Abacus Instruction Device [19.10%]
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Patent:US378866
06.03.1888 E. P. Clark & D. L. Wren : Abacus [17.78%]
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Patent:US422612
04.03.1890 C. Neuhaus : Abacus [50.33%]
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Patent:US4629429
16.12.1986 Horie, Tsuyoshi (7-15, Iwamoto-cho 3-chome,, Chiyoda-ku, : Abacus with each counter held in position by friction or magnetic attraction [53.35%]
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Patent:US4812124
14.03.1989 Colodner, Jesse (P) : Hexadecimal abacus [37.21%]
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Patent:US501379
11.07.1893 H. Steward : Abacus Attachment for Slates [49.24%]
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Patent:US5134692
28.07.1992 Hiromori, Junji (P) Hiromori (P) Inv. : Combined electronic calculator and abacus with deflective guide bars [43.26%]
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Patent:US532282
08.01.1895 L. D. Myers : Abacus [50.33%]
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Patent:US5395245
07.03.1995 Heinz, Ted (33694 Colgate Dr., Union City, CA 94587) : Elastic pattern abacus and tool for changing arrangement of abacus beads [17.09%]
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Patent:US5423682
13.06.1995 Hildebrandt, Raymond E. (7213 Huntcliff, West Bloomfield, : Numbering system teaching aid [11.34%]
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Patent:US5725380
10.03.1998 Kennelly, Kim (140 Ingrid Pl., Oldsmar, FL 34677) : Combination writing board and abacus [34.75%]
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Patent:US580516
13.04.1897 B. S. Andrew : Abacus [30.08%]
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Patent:US637964
28.11.1899 J. P. Johnsen : Abacus [20.51%]
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Patent:US6413099
02.07.2002 Rainey, John Desmond (P.O. Box 40-288, Glenfield, Auckland, : Educational device for teaching simple and complex mathematical concepts [11.09%]
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Patent:US6712614
30.03.2004 Henderson, Gerald (P) : Abacus calculator [50.68%]
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Patent:US826732
24.07.1906 A. Monachimoff : Abacus [8.34%]
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Patent:US964064
12.07.1910 R. F. Smith : Educational Appliance [7.26%]
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Patent:USD149083
23.03.1948 C. Mooney : Abacus [75.98%]
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Patent:USD155127
13.09.1949 W. P. Colvin : Abacus-Like Toy [25.48%]
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Patent:USD181754
17.12.1957 A. F. Scott : Abacus [49.30%]
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Patent:USD184042
09.12.1958 A. G. Dochterman and E. R. Dochterman : Abacus [66.18%]
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Patent:USD185221
19.05.1959 J. A. McFadden : Combined Lamp Base and Abacus [65.99%]
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Patent:USD198847
11.08.1964 T. L. Mathison : Abacus or the like [50.33%]
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Patent:USD203176
14.12.1965 G. E. Kardach : Abacus [47.86%]
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Patent:USD215004
19.08.1969 K. Ootu : Abacus [73.93%]
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Patent:USD217911
24.02.1969 Herold, Willy (P) : Abacus [70.62%]
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Patent:USD9303
23.05.1876 G. M. Kendall : Abacus [37.15%]