Brevetto

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Patent:GB478053
11.01.1938 Hughes Henry and Son Ltd : Improvements in plotting and computing devices
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Patent:GB479061
31.01.1938 Burroughs (P) Adding Machine Co : Improvements in paper guide means for calculating and the like machines
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Patent:GB479234
02.02.1938 AB Original Odhner (P) : Improvements in calculating machines
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Patent:GB480112
17.02.1938 Arthur Joseph Hughes Henry Hughes And Son Ltd : Improvements in calculating mechanism for measuring instruments
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Patent:GB480163
14.02.1938 Frederick Thomas Dabbs : Improvements in or relating to calculating machines
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Patent:GB480244
21.02.1938 Sidney Oswald Ullathorne Veal, Harold Farrow, Walter : Improvements in or relating to scoring devices for games
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Patent:GB481675
16.03.1938 Thomas Lewis Coppock : Copy-holder for use with typewriters, and calculating machines
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Patent:GB481798
11.03.1938 Broido, Daniel (P) : A calculating device combined with a weight indicator
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Patent:GB481801
14.03.1938 Underwood (P) Elliott Fisher (P) Co : Improvements in and relating to adding machines having multiple-zero keys
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Patent:GB482264
25.03.1938 Junghans (P) Geb Ag : Improvements in or relating to winding crowns for pocket and wrist
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Patent:GB483021
11.04.1938 British Tabulating (P) Mach Co Ltd : Improvements in or relating to counters for tabulating and other calculating machines
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Patent:GB483086
12.04.1938 Burroughs (P) Adding Machines Comp. : Improvements in calculating machines
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Patent:GB483112
12.04.1938 Burroughs (P) Adding Machines Comp. : Transfer mechanism for registers of calculating and the like machines
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Patent:GB483113
12.04.1938 Burroughs (P) Adding Machines Comp. : Improvements in or relating to calculating machines
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Patent:GB483234
11.04.1938 Arthur Thomas : Improvements in or relating to calculating machines
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Patent:GB483235
11.04.1938 Arthur Thomas : Improvements in or relating to calculating machines
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Patent:GB483906
27.04.1938 Tennant, W. J. Soc. Industrielle d'Instruments de Précision : Improvements in calculating machines
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Patent:GB484150
27.04.1938 Charles Borel : Improvements in or relating to multiplying machines
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Patent:GB484486
05.05.1938 British Tabulating (P) Machine Comp. Ltd. : Improvements in or relating to paper-feeding mechanism for statistical machines
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Patent:GB484852
11.05.1938 Walter Henry Edridge : Improvements in and relating to combined logarithmic calculating and linear measurement scales or scales having equi-distant graduations
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Patent:GB484911
09.05.1938 Richard Everest Baldwin : Improvements in or relating to Record Card Controlled Tabulating Machines
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Patent:GB485103
13.05.1938 British Tabulating (P) Mach Co Ltd : Improvements in or relating to counters for tabulating and other calculating machines
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Patent:GB486841
10.06.1938 Gardner (P) Comp. : Improvements in and relating to adding, calculating and like machines
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Patent:GB487341
20.06.1938 British Tabulating (P) Mach Co Ltd : Improvements in or relating to multiplying machines
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Patent:GB487479
21.06.1938 Zeiss, Carl (P) : Improvements in cam gearings for calculating apparatus
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Patent:GB488083
30.06.1938 Kübler, Carl : Improvements in and relating to Calculating Devices
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Patent:GB488290
05.07.1938 Andre Rochat : Calculating apparatus
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Patent:GB488754
13.07.1938 Arnold, Carl (P) : Mechanical toy imitating a calculating animal
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Patent:GB489425
26.07.1938 Broido, Daniel (P) : Improvements in statistical and other calculating machines
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Patent:GB489501
28.07.1938 Charles Andrew Fountaine : Improvements in or relating to calculating slide rules
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Patent:GB489603
28.07.1938 Charles Andrew Fountaine : Improvements in or relating to calculating slide rules
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Patent:GB490000
08.08.1938 Hofgaard, Rolf (P) : Improvements in key-boards of calculating machines
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Patent:GB490358
12.08.1938 Ernest Charles McClure : Improvements in or relating to record controlled multiplying machines
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Patent:GB490418
10.08.1938 Remington Rand (P) : Improvements in or relating to multiplying machines
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Patent:GB490579
17.08.1938 Appleyard, Rollo (P), Arthur Joseph Hughes, Hughes Henry : Improvements in or relating to calculating or computing devices
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Patent:GB490869
23.08.1938 Electrical Res Prod Inc : Improvements in or relating to calculating machines
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Patent:GB491066
22.08.1938 Thomas William Chick : Improvements in or relating to calculating machines
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Patent:GB491381
29.08.1938 Sidney Wheatley : Improvements in or relating to means for controlling the printing mechanism of calculating or statistical machines
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Patent:GB492145
15.09.1938 Edvard Hansen Velle : Logarithmic calculating disc
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Patent:GB492261
16.09.1938 Burroughs (P) Adding Machine Comp. : Improvements relating to paper holding means for accounting or the like machines
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Patent:GB492748
22.09.1938 Hofgaard, Rolf (P) : Improvements in calculating machines
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Patent:GB493114
03.10.1938 Henry Jones : An improved logarithmic calculator
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Patent:GB493277
04.10.1938 Broido, Daniel (P) : Improvements in and relating to calculating machines
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Patent:GB493638
12.10.1938 Hans Fredrik Birger Högfors Svenska Kassaregister-AB : Improvements in Cash Registers, Adding or Accounting Machines or like Calculating Apparatus
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Patent:GB493753
13.10.1938 Roger Audibert : Improvements in and relating to totaliser actuating and printing means for calculating machines and similar apparatus
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Patent:GB493842
12.10.1938 Remington Rand (P) Inc : Improvements in or relating to calculating machines
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Patent:GB494252
24.10.1938 Standard Telephones Cables Ltd : Calculating devices for navigating purposes
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Patent:GB494522
26.10.1938 Remington Rand (P) Inc : Improvements in or relating to record card controlled calculating machines
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Patent:GB494583
26.10.1938 Harold Hall Keen British Tabulating (P) Mach Co Ltd : Improvements in or relating to paper-feeding mechanism for calculating, accounting, and like machines
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Patent:GB494806
01.11.1938 Carl, Neitzel : Adjustable indicating device for use with recording calculating machines
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Patent:GB495416
14.11.1938 British Thomson Houston Co Ltd : Improvements in and relating to calculating apparatus for use in navigation
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Patent:GB495448
14.11.1938 John Thraves Goddard : Improvements in or relating to calculating and games-score registering apparatus
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Patent:GB495998
23.11.1938 Charles Emmor Allderdice Jr : Improvements in or relating to computing devices
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Patent:GB496365
29.11.1938 Harold Arthur Day : Improvements in games+score indicators
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Patent:GB496563
30.11.1938 Burroughs (P) Adding Machine Co. : Improvements in or relating to line finding means for accounting and the like machines
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Patent:GB496720
01.12.1938 Mercedes (P) Büromaschinen-Werke AG : Improvements in total-taking mechanism for calculating machines
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Patent:GB497039
12.12.1938 British Tabulating (P) Mach Co Ltd : Improvements in or relating to calculating machines for performing division
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Patent:GB497196
14.12.1938 Dirk, Veenman (P) : Motor-driven calculating or accounting machine
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Patent:GB497441
20.12.1938 Monroe (P) Calculating Machine Comp. : Improvements in and relating to Calculating Machines
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Patent:GB497462
20.12.1938 Monroe (P) Calculating Machine Comp. : Improvements in and relating to Calculating Machines
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Patent:GB497588
19.12.1938 Baldwin, Richard Everest (P) : Improvements in or relating to calculating machines
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Patent:GB497640
22.12.1938 Laurence N. Lehman NCR (P) : Improvements in or relating to calculating machines and similar accounting machines
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Patent:GB497641
19.12.1938 Karl Leichthammer, Carl Lehner, Meta Gadesmann, : Improvements in and relating to devices for determining telephone
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Patent:GB497676
23.12.1938 British Tabulating (P) Mach Co Ltd : Improvements in or relating to record-card controlled calculating machines
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Patent:GB497723
22.12.1938 Sordoillet, Pierre : Improvement in Mechanical Calculators
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Patent:GB523064
23.12.1938 Burroughs (P) : Improvements in or relating to Calculating Machines
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Patent:GB525861
04.03.1938 Mercedes (P) Büromaschinenwerke AG : Improvements in Calculating Machines
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Patent:GB535891
21.06.1938 NCR (P) : calculating Machines
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Patent:GB536898
20.12.1938 Monroe (P) : Adding and Listing Machines