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10.01.1950 Swift, Gilbert : Mechanical position finder
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10.01.1950 Cecil Thomas Walmsley : Reckoning device
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10.01.1950 Anderson, Walter (P) Underwood (P) Corp. : Load equalizing for differential actuators
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10.01.1950 Benjamin M. Durfee IBM (P) : Dividing machine
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10.01.1950 Griesbaum, H. G. (P) : Adjustable Calculating Chart
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10.01.1950 James P. Fay Predictor Corp. : Rhythmic Cycle Indicator
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17.01.1950 Atwood Newell : Radio communication graphic calculator
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17.01.1950 Carlo Dalboni : Calculator
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17.01.1950 Mayer, Erwin; Coles, Joseph F. Neptune Meter Comp. : Resettable register
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17.01.1950 Samuel P. Saint General Railway Signal Comp. : Means for airplane approach control
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17.01.1950 Oscar S. Field Sedgwick N. Wight Ralph W. Hewes General Railway Signal Comp. : Airplane approach control system
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24.01.1950 Porges, Nandor (P) et Hogan, T. Joseph (P) : Planimeter
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31.01.1950 William C. Schroeder : Pilotage computer
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31.01.1950 Boyden, Robert E. (P) : Keyboard for Calculating Machines
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07.02.1950 Merriam, C. W., Jr. (P) et al : Ship Loading Evaluating Device
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07.02.1950 Clifton King Rainey Rainey Accounting Machine Comp. : Typing and printing mechanism for accounting machines and the like
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14.02.1950 Coggeshall, Norman D. Gulf Research Development Comp. : Electrical logarithm computer
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21.02.1950 Svoboda, Antonin (P) : Mechanical computer
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21.02.1950 Svoboda, Antonin (P) : Multiplying linkage
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21.02.1950 Svoboda, Antonin (P) : Mechanical divider
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21.02.1950 Hertig, M. (P) : Bowling Slide Rule
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28.03.1950 Young, L. (P) : Quartertone Slide Rule for Musicians
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18.04.1950 Weiss, H. K. (P) : Gun Fire Director Simulator
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02.05.1950 Miller Thomas Joseph : Spherical calculator
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02.05.1950 John R. Sears : Percentage computation aid apparatus
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09.05.1950 Noyes, H. R. (P) : Computing Device
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09.05.1950 Rosenfeld, M. (P) : Educational Device
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16.05.1950 Brown, Francis (P) : Valve actuating means for hydraulic nomographic multipliers
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16.05.1950 Crowther, G. A. (P) : Sine and Cosine Function Voltage Device
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23.05.1950 James T. Roberts : Solar azimuth protractor
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13.06.1950 Fulboam, E. G. (P) : Indicating Instrument
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13.06.1950 Kahan, B. D. (P) : Slide Rule
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20.06.1950 James L. Suydam : Aerial navigation computer
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20.06.1950 Joseph Spielmann : Combined and perpetual indicator of the menstrual cycle
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20.06.1950 Fujisaki, Y. (P) : Slide Rule
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27.06.1950 Henrich, W. H. (P) : Control Means for Electric Typewriters
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27.06.1950 Arthur Randolph Boutwell : Fertility and sterility indicator
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27.06.1950 Park L. Morse : Rhythm calculator
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04.07.1950 James D. Killough : Calculator
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04.07.1950 Theisen, E. J. (P) : Key-Operated Adding Machine
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04.07.1950 Robert R. Kelley Richard E. Schenck : Built-in-flash calculator for flash
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04.07.1950 Charles W. Adshead Setright Registers Ltd. : Totalizator registers
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04.07.1950 Giles, H. Y. (P) : Dividing Rule
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11.07.1950 Gang, Herman (P) Monroe (P) : Clutch Control Means
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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
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11.07.1950 Martin L. Nelson Production Instrument Comp. : Zero-reset device for numerical counters
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18.07.1950 Drake, E. P. (P) : Calculating Machine
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18.07.1950 George E. Ford Powers-Samas Accounting Machines Ltd. : Pabtial product multiplying machine
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18.07.1950 Arthur Thomas Powers Samas Account Mach Ltd : Actuator for accumulators in calculating machines
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25.07.1950 Deimel, R. F. (P) et al : Calculating Instrument
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01.08.1950 Georgion, M. M. (P) : Computing and Measuring Instrument
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08.08.1950 Mundorff, G. T. (P) : Computer for Flash and Flood Lamp Photography
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08.08.1950 John B. Lancaster : Menstrual cycle indicating device
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08.08.1950 Rabenda, Edward J. (P) Ralph E. Page Horace S. Beattie IBM (P) : Sub and grand total printing, resetting, and amount transfer mechanism
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08.08.1950 Mixer, Harold P. (P) Remington (P) Rand Inc : Crawl carry mechanism
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08.08.1950 Roggenstein, Edwin Otto (P) : Power Operated Differential Mechanism
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15.08.1950 Landon, R. W. (P) : Electric Integrating Apparatus
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22.08.1950 Sundstrand, Oscar (P) : Accounting Machine
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29.08.1950 Abraham Green : Sterility Slide Rule
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29.08.1950 Parameswar Nilakantan : Center of gravity calculator
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05.09.1950 Boehm Jr Alfred A : Calculator
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05.09.1950 Rabenda, Edward J. (P) Ralph E. Page Horace S. Beattie IBM (P) : Accounting machine for repeating total printing cycle when error in accumulator reset is ascertained
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05.09.1950 Marcel Sens-Olive IBM (P) : Multiplying device
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12.09.1950 Hartig Henry E : Calculator
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12.09.1950 William D. McPartlin : Trig-meter
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19.09.1950 Gourdon, R. (P) : Value Indexing Mechanism
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26.09.1950 Starr James H : Calculating Table and the like
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26.09.1950 Harold W. Peterson : Time and distance computer
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26.09.1950 Knut Andreas Knutsen : Keyboard for electrically controlled accounting or card punching machines
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03.10.1950 Vetter, O. B. (P) : Apparatus fr Measuring the Product of two or more Variables
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10.10.1950 Silverman, D. (P) : Elevation Recording Apparatus
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10.01.1950 Herzstark, Curt (P) : Calculating Machine
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10.10.1950 Nolde, G. V. (P) Marchant (P) Calculating Machine Co., CA : Calculating Machine
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24.10.1950 John T. Davidson Paul H. Williams Jesse R. Ganger James H. Crawford NCR (P) : Accounting machine
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24.10.1950 Rickard, R. E. (P) et al : Abacus
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24.10.1950 Vetter Otto B Hagan Corp : Calculating Linkage
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24.01.1950 Turck, Joseph Abraham Valentine (P) : Calculating Machine
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31.10.1950 Isserstedt, S. G. (P) : Logarithmic Calculator
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31.10.1950 Laurence Taaffe John : Slide Rule
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31.10.1950 Gang, Herman (P) : Carriage Shifting Mechanism
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31.10.1950 Lothman Victor O : Calculator
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31.10.1950 Richard A. Kraft : Adding machine
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07.11.1950 Huber, F. J. (P) : True Air-Speed Computer
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07.11.1950 Garbell, Max (P) Royal Typewriter (P) Comp. : Computing machine
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14.11.1950 Moody, John L. (P) : Power Unit
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14.11.1950 Britten, E. F., Jr. (P) : Calculating Machine
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14.11.1950 André Philippe Clouez : Calculating apparatus
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14.11.1950 Kreitner, John (P) Sixtal Development Comp. : Rotary Computer
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21.11.1950 Ellerbeck, Grant C. Friden (P) Calculating Machine Co., Inc. : Value selecting and entering mechanism
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21.01.1950 Turck, Joseph Abraham Valentine (P) : Calculating Machine
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21.11.1950 Gang, Herman (P) Monroe (P) : Carriage Tabulating Means
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21.11.1950 Gang, Herman (P) Monroe (P) : Product Transfer Means
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28.11.1950 Elmer F. Laurin : Interest computing device
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28.11.1950 Brown Dayton R E : Light and sun position calculator
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28.11.1950 Hesh, F. H. (P) : Electronically Operated Typewriter
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05.12.1950 Werner, S. E. (P) : Cash Register, Accounting Machine, and the like
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12.01.1950 Herzstark, Curt (P) : Zeroizing Mechanism
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12.12.1950 Wilbur Allro Steward : Multiplying apparatus
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12.12.1950 Farbman, William (P) : Computing Device
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12.12.1950 Jovino A. Espinola : Calculator
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12.12.1950 Hall, E. F. (P) : Calculator
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12.12.1950 Biehler, L. A. (P) : Integrating Mechanism
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12.12.1950 Pierce, N. T. (P) : Calculating Machine
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19.12.1950 Jensen, Willard : Triangle calculator
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26.12.1950 Bush William E : Calculator
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26.12.1950 Wilbur E. Walker : Auxiliary keyboard
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26.12.1950 Hoover Richard : Moment of inertia calculating device
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26.12.1950 Skolink, S. (P) : Calculator
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26.12.1950 John B. Lancaster : Menstrual cycle indicating device
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26.12.1950 Lundahl Carl A : Tray attachment for adding machines, typewriters, and the like
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29.07.1950 Llorens, Louis M. (P) : Calculating Machine
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23.05.1950 Butler, Thomas M. (P) Burroughs (P) Adding Machine Comp. : Accounting machine
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11.07.1950 L. Bodor : Combined Pencil Holder and Multiplier
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22.08.1950 William Clair Haring : Canasta scorer
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31.10.1950 George H. Kress Carl W. Sundberg IBM (P) : Card controlled accounting machine
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20.06.1950 Ferdinand J. Tillman : Typewriter calculating machine
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