Patent

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Patent:US3709430
09.01.1973 Bernard John Matthews Raymond Lee Organization : Biorythmic indicator
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Patent:US3710108
09.01.1973 John J. Haarhaus, Richard J. McEvilly : Relaying to Direct Reading Calculators
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Patent:US3710456
16.01.1973 Jerman M : Teachimg Aid
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Patent:US3711014
16.01.1973 Joseph A. Tucker : Personal Portfolio Computer
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Patent:US3712167
23.01.1973 Jacques R. Renault : Chord Slide Rule for Musical Instruments
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Patent:US3712974
23.01.1973 J. R. Martin : Computational Hexadecimal Slide Rule
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Patent:US3714399
30.01.1973 James A. Cataland : Race calculator
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Patent:US3716015
13.02.1973 Peter James Godfrey : Measuring Devices
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Patent:US3716186
13.02.1973 K. B. Comfort : Hexadecimal Slide Rule
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Patent:US3716187
01.02.1973 Olof Jonsson, Dan : Tape calculator
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Patent:US3716702
13.02.1973 Francis J. Hopcroft : Multi-Parameter Converting Slide Rule
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Patent:US3717298
20.02.1973 Emil Brugger : Sliderule for Payroll Use
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Patent:US3717299
20.02.1973 Penn, William O. : Calendar and date computer
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Patent:US3717941
27.02.1973 Benajmin E. Tomerlin : Probability Teaching Aid
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Patent:US3719800
06.03.1973 William P. Weaver : Integrator Compensator for Improving Accuracy
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Patent:US3719806
06.03.1973 Glenn G. Davidson : Apparatus for Calculating Halftone Screen Exposures
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Patent:US3719996
13.03.1973 Sertorio Arruda Filho : Ellipsograph
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Patent:US3720369
13.03.1973 Samuel Laboy Alvarado : Soil Analysis and Device Therefor
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Patent:US3721007
20.03.1973 Philip M. Banner : Navigation Calculator
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Patent:US3722796
27.03.1973 Fleming J Sterling Plastics (P) CO. : Slide Rule Cursor
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Patent:US3728930
24.04.1973 William Maron : Music Training Device
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Patent:US3729130
24.04.1973 Milton J. Bortz : Football Slide Rule
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Patent:US3731401
08.05.1973 Tsuneji Kojima : Abacus Instruction Device
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Patent:US3732399
08.05.1973 Finley D : Combined Oval Slide Rule And Nomograph
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Patent:US3733470
15.05.1973 Iosif Hondrea : Slide Rule of General Use of Pocket Size
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Patent:US3733896
22.05.1973 Masahiro Soya et al. : Computing Apparatus for a Calorimeter
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Patent:US3735100
22.05.1973 Wagenfeld, Gilbert B. : Linear distance-speed-time computer
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Patent:US3745313
10.07.1973 Athelstan F. Spilhaus Nautilus Press : Tide computation apparatus and method
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Patent:US3745658
17.07.1973 Pedro C. Raneses : Apparatus for determining earthwork volumes
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Patent:US3747844
24.07.1973 Youngman, Phillip (P) : Computing Aparatus
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Patent:US3747845
24.07.1973 Salvador F. Portuesi : Speed and Distance Computer for Bicycles
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Patent:US3747846
24.07.1973 William C. Long : Elementary Circular Slide Rule
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Patent:US3747847
24.07.1973 Melvin L. Cohen : Slide Rule Guide to Intrevenous Therapy
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Patent:US3748454
24.07.1973 Grier, David : Pneumatic Computing Devices
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Patent:US3748947
31.07.1973 Roger E. Freiheit : Melody Chord Constructor for String Instruments
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Patent:US3750796
07.08.1973 DeGraff, Peter H.; W. Lee, James NCR (P) : Self-interlocking keyboard
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Patent:US3750797
07.08.1973 Hunt, Ronald E.; Morgan, Joseph S. IBM (P) : Carrier positioning and tabulation apparatus
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Patent:US3751813
14.08.1973 Kuwada E : Slide Rule And Compass Device
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Patent:US3752031
14.08.1973 Istvan Mohos : Twelve-Tone-Row Modulator
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Patent:US3752392
14.08.1973 Kenneth F. Oldenburg : Business Machines
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Patent:US3754702
28.08.1973 Walter K. Schwarz David J. Schlink Peoria Journal Star : Calculating device
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Patent:US3757092
04.09.1973 Timothy W. Miller : Calculator for Controlling Basic Oxygen Steelmaking
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Patent:US3758698
11.09.1973 Matyas J : Fretted Instrument Fingerboard Chord Slide Rule
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Patent:US3760165
18.09.1973 Frederick C. Marcks : Currency Converter
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Patent:US3764065
09.10.1973 George W. Plumley : Area Dialing Device
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Patent:US3771409
13.11.1973 James C. Rickey : Music Teaching Device ...
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Patent:US3778766
11.12.1973 Lawrence F. Rapp : Check digit calculator
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Patent:US3779454
18.12.1973 Koren J Raymond Lee Organization Inc : Slide Rule For Electronic Analysis
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Patent:US3891142
28.12.1973 Barozzi, Gianpiero (P), Horeschi, Giancarlo (P) Citizen (P) Watch Co. : Device for Calculating Machines wherein the platen is tapped against the types, to allow for an uniform impression thereof
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Patent:USD225773
02.01.1973 Lester L. Westling : Dietary calorie totalizer
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Patent:USD226196
30.01.1973 E. T. Liljenwall : Casing for a Portable Electronic Calculator
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Patent:USD226197
30.01.1973 E. T. Liljenwall : Casing for a Portable Electronic Calculator
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Patent:USD227299
12.06.1973 M. T. Moldovan : Voting Machine
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Patent:USD227585
03.07.1973 D. K. Welbourn : Sliding Beads Game Board
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Patent:USD228800
23.10.1973 M. T. Moldovan : Voting Machine