Patentdatenbank   USA   1950

• Patent:US2493229 03.01.1950 Dibrell, J. W. et al : Instrument for Drawing Ellipses or the like
• Patent:US2499946 07.01.1950 Carlsen, J. : Carrying Mechanism for Calculating Machines
• Patent:US2493786 10.01.1950 Swift, Gilbert : Mechanical position finder
• Patent:US2493792 10.01.1950 Cecil Thomas Walmsley : Reckoning device
• Patent:US2493799 10.01.1950 Anderson, Walter Underwood Corp. : Load equalizing for differential actuators
• Patent:US2493862 10.01.1950 Benjamin M. Durfee IBM : Dividing machine
• Patent:US2494172 10.01.1950 Griesbaum, H. G. : Adjustable Calculating Chart
• Patent:US2494291 10.01.1950 James P. Fay Predictor Corp. : Rhythmic Cycle Indicator
• Patent:US2525352 10.01.1950 Herzstark, Curt : Calculating Machine
• Patent:US2533372 12.01.1950 Herzstark, Curt : Zeroizing Mechanism
• Patent:US2494536 17.01.1950 Atwood Newell : Radio communication graphic calculator
• Patent:US2494609 17.01.1950 Carlo Dalboni : Calculator
• Patent:US2494955 17.01.1950 Mayer, Erwin; Coles, Joseph F. Neptune Meter Comp. : Resettable register
• Patent:US2495139 17.01.1950 Samuel P. Saint General Railway Signal Comp. : Means for airplane approach control
• Patent:US2495140 17.01.1950 Oscar S. Field Sedgwick N. Wight Ralph W. Hewes General Railway Signal Comp. : Airplane approach control system
• Patent:US2531089 21.01.1950 Turck, Joseph Abraham Valentine : Calculating Machine
• Patent:US2495675 24.01.1950 Porges, Nandor et Hogan, T. Joseph : Planimeter
• Patent:US2527467 24.01.1950 Turck, Joseph Abraham Valentine : Calculating Machine
• Patent:US2495777 31.01.1950 William C. Schroeder : Pilotage computer
• Patent:US2495832 31.01.1950 Boyden, Robert E. : Keyboard for Calculating Machines
• Patent:US2496302 07.02.1950 Merriam, C. W., Jr. et al : Ship Loading Evaluating Device
• Patent:US2496357 07.02.1950 Clifton King Rainey Rainey Accounting Machine Comp. : Typing and printing mechanism for accounting machines and the like
• Patent:US2496614 07.02.1950 Arni Arnason : Ellipsograph
• Patent:US2496942 07.02.1950 Hill Keith A : Calculating Device
• Patent:US2497208 14.02.1950 Coggeshall, Norman D. Gulf Research Development Comp. : Electrical logarithm computer
• Patent:US2497264 14.02.1950 Klosterman, Joseph J. NCR : Record material equipment for cash registers
• Patent:US2497784 14.02.1950 Mehan, Thomas O. et al : Calculating Machine and Remote Control Mechanism Therefor
• Patent:US2497853 21.02.1950 Arnold, J.G. et al : Apparatus for Projecting Circular Markings upon Nonplanar Surfaces
• Patent:US2498130 21.02.1950 Lundin, S. A.E. : Reversible Drive for Revolutions Counter
• Patent:US2498308 21.02.1950 Svoboda, Antonin : Mechanical computer
• Patent:US2498309 21.02.1950 Svoboda, Antonin : Multiplying linkage
• Patent:US2498310 21.02.1950 Svoboda, Antonin : Multiplying linkage
• Patent:US2498311 21.02.1950 Svoboda, Antonin : Mechanical divider
• Patent:US2498312 21.02.1950 Svoboda, Antonin : Multiplying and dividing linkage
• Patent:US2498421 21.02.1950 Hertig, M. : Bowling Slide Rule
• Patent:US2498439 21.02.1950 Liljeström, Gustaf Vilhelm : Ten-Key Calculating Machine
• Patent:US2498798 28.02.1950 Edwards, O. P. : Ellipsograph
• Patent:US2499237 28.02.1950 Fink Melvin M Franklin Veatch : Adding device
• Patent:US2499407 07.03.1950 : Attachment for converters
• Patent:US2499678 07.03.1950 Phillips, Edmund J. : Calendar
• Patent:US2499941 07.03.1950 Benfer, R. W. : Automatic Plotter
• Patent:US2500269 14.03.1950 Horace S. Beattie Francis E. Hamilton George F. Daly IBM : Accumulating mechanism
• Patent:US2500346 14.03.1950 Christian, Raymond A. et al : Clutch Control Mechanism for Calculating Machines
• Patent:US2500460 14.03.1950 Hunt, H. Keuffel and Esser : Slide Rule
• Patent:US2500924 21.03.1950 Bliss, W. R. : Calculating Device
• Patent:US2500935 21.03.1950 Deitz, J. : Chart Analyzer
• Patent:US2501444 21.03.1950 Gollwitzer, Walter Addressograph Multigraph : Calculating Machine
• Patent:US2501447 21.03.1950 Lambert, H. L. : Calculating Machine Fractional Keyboard Control Mechanism
• Patent:US2501550 21.03.1950 Tamagna, I. G. et al : Electrocardiogram Reading Device
• Patent:US2502300 28.03.1950 Young, L. : Quartertone Slide Rule for Musicians
• Patent:US2502321 28.03.1950 Harrison, W. M. Marchant : Carriage Positioning Control Mechanism
• Patent:US2502919 04.04.1950 Samuel Brand James M. Cunningham Leon C. Bishop IBM : Accumulator for accounting machines
• Patent:US2503004 04.04.1950 Edward J. Sochaczewski IBM : Unit carry device fob accumulators
• Patent:US2503127 04.04.1950 Mumma Robert E NCR : Electric impulse generator for calculating machines
• Patent:US2503332 11.04.1950 Grip, Erik Konrad AB Facit : Differential gear tens transfer device
• Patent:US2503387 11.04.1950 Hartwig Karl T Universal Oil Prod Co : Electrical Calculating Apparatus
• Patent:US2503398 11.04.1950 Lindsey, W. S. : Log Scale
• Patent:US2503423 11.04.1950 Silverman, D. et al : Pendulum System for Grade-Angle Measurements
• Patent:US2503613 11.04.1950 Carlsen, J. Contex : Carrying Mechanism for Calculating Machines
• Patent:US2503800 11.04.1950 Christian, Raymond A. NCR : Tens transfer mechanism for totalizers
• Patent:US2503805 11.04.1950 John T. Davidson Jesse R. Ganger James H. Crawford Herman F. Sadgebury NCR : Record material equipment for accounting machines
• Patent:US2503865 11.04.1950 Christian, Raymond A. NCR : Differential setting mechanism for printing machines
• Patent:US2503932 11.04.1950 Marie Barbey Raymond Alphonse : Electric Calculating Machine
• Patent:US2504167 18.04.1950 Weiss, H. K. : Gun Fire Director Simulator
• Patent:US2504532 18.04.1950 Kahan, Benedict D. : Calculating device
• Patent:US2505149 25.04.1950 Schoenberg Virgil A : Trigonometric calculator
• Patent:US2505341 25.04.1950 Rankin, Ira F. : Perpetual calendar
• Patent:US2505521 25.04.1950 Boyajian, A. : Age Indicating Device for Electrical Apparatus
• Patent:US2506103 02.05.1950 Phillips, W. B. : Calculating Device
• Patent:US2506176 02.05.1950 Sbernadori, P. : Slide Rule
• Patent:US2506251 02.05.1950 Miller Thomas Joseph : Spherical calculator
• Patent:US2506299 02.05.1950 Isom, E. C. : Computer
• Patent:US2506337 02.05.1950 Boyden, Robert E. Clary Multiplier Corp. : Cover section for oscillating type wheels
• Patent:US2506390 02.05.1950 John R. Sears : Percentage computation aid apparatus
• Patent:US2506876 09.05.1950 Awdry Francis Julius George Alfred Julius Automatic Totalisators Ltd. : Odds computing device for race totalizators
• Patent:US2506888 09.05.1950 Patterson, Alfe : Perpetual calendar
• Patent:US2507173 09.05.1950 Noyes, H. R. : Computing Device
• Patent:US2507223 09.05.1950 Rosenfeld, M. : Educational Device
• Patent:US2507498 16.05.1950 Brown, Francis : Valve actuating means for hydraulic nomographic multipliers
• Patent:US2507890 16.05.1950 Crowther, G. A. : Sine and Cosine Function Voltage Device
• Patent:US2508838 23.05.1950 James T. Roberts : Solar azimuth protractor
• Patent:US2508898 23.05.1950 Albert H. Stronstorff Reynolds Metals Comp. : Aircraft flight time and mileage computer
• Patent:USD158647 23.05.1950 Butler, Thomas M. Burroughs Adding Machine Comp. : Accounting machine
• Patent:US2509493 30.05.1950 Henry Gross Samuel Gross : Key operated actuator mechanism for cash registers
• Patent:US2509718 30.05.1950 Marie Barbey Raymond Alphonse : Electric calculator for studying correlative variations of quantities interconnectedby a system of mathematical relations forming a double e
• Patent:USD158768 30.05.1950 G. H. Kress : Cabinet for an Electronic Calculator
• Patent:US2510228 06.06.1950 Jenman Alfred G Lora Mildred Jenman : Calculating Device
• Patent:US2510391 06.06.1950 Evans, R. H. B. : Logarithmic Calculator
• Patent:US2510480 06.06.1950 Rudiger, C. E. : System and Method for Fitting Hearing Aids
• Patent:US2511104 13.06.1950 Eddy, F. R. : Apparatus for Indicating Differential Speeds of Rotating Elements
• Patent:US2511202 13.06.1950 Fulboam, E. G. : Indicating Instrument
• Patent:US2511270 13.06.1950 Kahan, B. D. : Slide Rule
• Patent:US2511555 13.06.1950 William R. Wenzel Thomas A. Laquidara Joseph C. Sirkin : Menstrual calendar device
• Patent:US2512184 20.06.1950 James L. Suydam : Aerial navigation computer
• Patent:US2512446 20.06.1950 Joseph Spielmann : Combined and perpetual indicator of the menstrual cycle
• Patent:US2512458 20.06.1950 Fujisaki, Y. : Slide Rule
• Patent:USRe23244 20.06.1950 Ferdinand J. Tillman : Typewriter calculating machine
• Patent:US2512860 27.06.1950 Henrich, W. H. : Control Means for Electric Typewriters
• Patent:US2512915 27.06.1950 Arthur Randolph Boutwell : Fertility and sterility indicator
• Patent:US2513196 27.06.1950 Park L. Morse : Rhythm calculator
• Patent:US2513491 04.07.1950 James D. Killough : Calculator
• Patent:US2513532 04.07.1950 Theisen, E. J. : Key-Operated Adding Machine
• Patent:US2513878 04.07.1950 Robert R. Kelley Richard E. Schenck : Built-in-flash calculator for flash
• Patent:US2514174 04.07.1950 Charles W. Adshead Setright Registers Ltd. : Totalizator registers
• Patent:US2514326 04.07.1950 Giles, H. Y. : Dividing Rule
• Patent:US2514754 11.07.1950 Gang, Herman Monroe : Clutch Control Means
• Patent:US2514770 11.07.1950 Raymond E. Kittredge Link Aviation, Inc. : Computer for grounded aviation trainers for converting indicated air speed to true air speed and vice versa
• Patent:US2514788 11.07.1950 Martin L. Nelson Production Instrument Comp. : Zero-reset device for numerical counters
• Patent:USD159247 11.07.1950 L. Bodor : Combined Pencil Holder and Multiplier
• Patent:US2515442 18.07.1950 Drake, E. P. : Calculating Machine
• Patent:US2515995 18.07.1950 George E. Ford Powers-Samas Accounting Machines Ltd. : Pabtial product multiplying machine
• Patent:US2516032 18.07.1950 Arthur Thomas Powers Samas Account Mach Ltd : Actuator for accumulators in calculating machines
• Patent:US2516187 25.07.1950 Deimel, R. F. et al : Calculating Instrument
• Patent:US2918211 29.07.1950 Llorens, Louis M. : Calculating Machine
• Patent:US2517196 01.08.1950 Georgion, M. M. : Computing and Measuring Instrument
• Patent:US2517590 08.08.1950 Mundorff, G. T. : Computer for Flash and Flood Lamp Photography
• Patent:US2517793 08.08.1950 John B. Lancaster : Menstrual cycle indicating device
• Patent:US2518063 08.08.1950 Rabenda, Edward J. Ralph E. Page Horace S. Beattie IBM : Sub and grand total printing, resetting, and amount transfer mechanism
• Patent:US2518358 08.08.1950 Mixer, Harold P. Remington Rand Inc : Crawl carry mechanism
• Patent:US2518377 08.08.1950 Roggenstein, Edwin Otto : Power Operated Differential Mechanism
• Patent:US2518797 15.08.1950 Landon, R. W. : Electric Integrating Apparatus
• Patent:US2519699 22.08.1950 Peterson Walter A : Rapid calculator for use with carpenter’s square
• Patent:US2520070 22.08.1950 Sundstrand, Oscar : Accounting Machine
• Patent:USD159808 22.08.1950 William Clair Haring : Canasta scorer
• Patent:USRe23259 22.08.1950 Moody, John L. Friden Calculating Machine Co. : Calculating machine
• Patent:USRe23260 22.08.1950 Moody, John L. Friden Calculating Machine Co. : Calculating machine
• Patent:US2520208 29.08.1950 Abraham Green : Sterility Slide Rule
• Patent:US2520428 29.08.1950 Parameswar Nilakantan : Center of gravity calculator
• Patent:US2520904 05.09.1950 Boehm Jr Alfred A : Calculator
• Patent:US2521408 05.09.1950 Rabenda, Edward J. Ralph E. Page Horace S. Beattie IBM : Accounting machine for repeating total printing cycle when error in accumulator reset is ascertained
• Patent:US2521418 05.09.1950 Marcel Sens-Olive IBM : Multiplying device
• Patent:US2521915 12.09.1950 Hartig Henry E : Calculator
• Patent:US2521930 12.09.1950 William D. McPartlin : Trig-meter
• Patent:US2522671 19.09.1950 Gourdon, R. : Value Indexing Mechanism
• Patent:US2523206 19.09.1950 Fluette, Joseph B.A. : Perpetual calendar
• Patent:US2523453 26.09.1950 Starr James H : Calculating Table and the like
• Patent:US2523589 26.09.1950 Harold W. Peterson : Time and distance computer
• Patent:US2523768 26.09.1950 Knut Andreas Knutsen : Keyboard for electrically controlled accounting or card punching machines
• Patent:US2524241 03.10.1950 Vetter, O. B. : Apparatus fr Measuring the Product of two or more Variables
• Patent:US2524934 10.10.1950 Silverman, D. : Elevation Recording Apparatus
• Patent:US2525423 10.10.1950 Nolde, G. V. Marchant Calculating Machine Co., CA : Calculating Machine
• Patent:US2526408 17.10.1950 Posson, C. A. : Cylindrical Slide Rule
• Patent:US2526730 24.10.1950 Charles Christen : Decimal point locator for slide
• Patent:US2526734 24.10.1950 John T. Davidson Paul H. Williams Jesse R. Ganger James H. Crawford NCR : Accounting machine
• Patent:US2527080 24.10.1950 Rickard, R. E. et al : Abacus
• Patent:US2527241 24.10.1950 Boyden, Robert E. Wharton A. Parsons Clary Multiplier Corp. : Item counter for computing machines
• Patent:US2527282 24.10.1950 Vetter Otto B Hagan Corp : Calculating Linkage
• Patent:US2527734 31.10.1950 Isserstedt, S. G. : Logarithmic Calculator
• Patent:US2527776 31.10.1950 Laurence Taaffe John : Slide Rule
• Patent:US2527990 31.10.1950 Gang, Herman : Carriage Shifting Mechanism
• Patent:US2528010 31.10.1950 Lothman Victor O : Calculator
• Patent:US2528100 31.10.1950 Williams Samuel B Bell Telephone Labor Inc : Electronic Calculator
• Patent:US2528142 31.10.1950 Herzlinger, J. I. : System for Transmitting Positional Data
• Patent:US2528149 31.10.1950 Richard A. Kraft : Adding machine
• Patent:USD160722 31.10.1950 George H. Kress Carl W. Sundberg IBM : Card controlled accounting machine
• Patent:US2528518 07.11.1950 Huber, F. J. : True Air-Speed Computer
• Patent:US2528633 07.11.1950 Anderson Guy : Roofing and calculating square
• Patent:US2528647 07.11.1950 Garbell, Max Royal Typewriter Comp. : Computing machine
• Patent:US2529070 07.11.1950 Borden, P. A. : Mean Velocity Indicator
• Patent:US2529601 14.11.1950 Freehafer John E Gen Railway Signal Co : Flight calculator for airplanes
• Patent:US2529747 14.11.1950 Toorell, Sture AB Facit : Aligning means for crawl-carry transfer mechanisms
• Patent:US2529810 14.11.1950 Moody, John L. : Power Unit
• Patent:US2530047 14.11.1950 Dewar, N. F. : Slide Rule
• Patent:US2530149 14.11.1950 Britten, E. F., Jr. : Calculating Machine
• Patent:US2530191 14.11.1950 André Philippe Clouez : Calculating apparatus
• Patent:US2530304 14.11.1950 Kreitner, John Sixtal Development Comp. : Rotary Computer
• Patent:US2530423 21.11.1950 Carson, C. : Calculating Board
• Patent:US2530515 21.11.1950 Ellerbeck, Grant C. Friden Calculating Machine Co., Inc. : Value selecting and entering mechanism
• Patent:US2530955 21.11.1950 Gerber, Heinz Joseph : Instrument for Measuring, Interpolating and the like
• Patent:US2530996 21.11.1950 Russel, A. G. : Differential Actuating Mechanism
• Patent:US2531204 21.11.1950 Gang, Herman Monroe : Carriage Tabulating Means
• Patent:US2531205 21.11.1950 Gang, Herman Monroe : Constant Factor Means
• Patent:US2531206 21.11.1950 Gang, Herman Monroe : Multiplier Entering Means
• Patent:US2531207 21.11.1950 Gang, Herman Monroe : Registration and Shift Control Means
• Patent:US2531208 21.11.1950 Gang, Herman Monroe : Product Transfer Means
• Patent:US2531633 28.11.1950 Elmer F. Laurin : Interest computing device
• Patent:US2531932 28.11.1950 Brown Dayton R E : Light and sun position calculator
• Patent:US2532228 28.11.1950 Hesh, F. H. : Electronically Operated Typewriter
• Patent:US2532353 05.12.1950 Boehm, P. F. : Ellipse Generator
• Patent:US2532619 05.12.1950 Heerich, E. W. : Calculating Device
• Patent:US2532819 05.12.1950 Morse Park L : Rhythm cycle calculator
• Patent:US2532892 05.12.1950 Clark, W. E. : Aperture Meter
• Patent:US2533075 05.12.1950 Werner, S. E. : Cash Register, Accounting Machine, and the like
• Patent:US2533408 12.12.1950 Wilbur Allro Steward : Multiplying apparatus
• Patent:US2533443 12.12.1950 Farbman, William : Computing Device
• Patent:US2533569 12.12.1950 Jovino A. Espinola : Calculator
• Patent:US2533580 12.12.1950 Hall, E. F. : Calculator
• Patent:US2533710 12.12.1950 Biehler, L. A. : Integrating Mechanism
• Patent:US2533954 12.12.1950 Pierce, N. T. : Calculating Machine
• Patent:US2534601 19.12.1950 Jensen, Willard : Triangle calculator
• Patent:US2534695 19.12.1950 Bland, J. R. Keuffel and Esser : Slide Rule
• Patent:US2535119 26.12.1950 Bush William E : Calculator
• Patent:US2535178 26.12.1950 Wilbur E. Walker : Auxiliary keyboard
• Patent:US2535208 26.12.1950 Hoover Richard : Moment of inertia calculating device
• Patent:US2535374 26.12.1950 Skolink, S. : Calculator
• Patent:US2535431 26.12.1950 John B. Lancaster : Menstrual cycle indicating device
• Patent:US2535743 26.12.1950 Lundahl Carl A : Tray attachment for adding machines, typewriters, and the like

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