Patente aus den USA 1975
- Patent:US3858798 07.01.1975 Jeffrey Feingold : Lettering layout calculator
- Patent:US3861337 21.01.1975 Thompson, Daniel : Mechanical Memory Device
- Patent:US3862398 21.01.1975 Richard E. Toscan : Sailboat Racing Calculator
- Patent:USD234360 18.02.1975 E. R. Duncan : Teaching Machine
- Patent:USD234372 18.02.1975 Baldwin, Richard Everest : Slide Computer
- Patent:USD234430 04.03.1975 John F. Armour NCR Corp. : Accounting machine or similar article
- Patent:USD234469 11.03.1975 J. Lindsay : Navigation Instrument
- Patent:US3876866 08.04.1975 Peter Dalzell Kaspar : Navigational calculator
- Patent:US3878612 22.04.1975 James B. Reed : Arrangement for Obtainig Distance Travelled and Ground Speed of an Aircraft
- Patent:US3880349 29.04.1975 James Richard Harte : Cylindrical calculator
- Patent:US3884113 20.05.1975 Leonard Verna M Leonard Verna M : Slide Rule Chord Indicator
- Patent:US3885133 20.05.1975 Zemanek, Rudolph; Zemanek, Elena : Method and apparatus for calculating characteristics
- Patent:USD235231 27.05.1975 B. O. Mellberg : Geographical Time Calculator
- Patent:US3892353 01.07.1975 Charles H. Schuh : Slide Rule
- Patent:USD236271 12.08.1975 A. Herczog : Portable Calculator or the like
- Patent:US3902169 26.08.1975 Izamu, Washizuka Sharp Kabushiki Kaisha : Drive System for Liquid Crystal Display Units
- Patent:USD236488 26.08.1975 G. F. Fossella : Calculator Case
- Patent:US3902656 02.09.1975 Alan J. Rothchild : Slide Calculator Construction
- Patent:US3903397 02.09.1975 Kotaro Yata Yoshimaru Ohta Minolta Camera Kabushiki Kaisha : Electronic flash parameter calculator device
- Patent:US3903782 09.09.1975 Verna M. Leonard : Primary chord organizer
- Patent:US3908112 23.09.1975 Allan K. W. Lo, Jerry C. Nims : Calculator for stereoscopic Photography
- Patent:US3908895 30.09.1975 Granholm Lars E Outboard Marine Corp : Slide Rule for computing motor boat performance
- Patent:US3916161 28.10.1975 William C. Hancock USA, Secretary of the Army : Hexidecimal to binary conversion device
- Patent:US3916162 28.10.1975 Riehle, Harald : Slide rule cursor
- Patent:US3916163 28.10.1975 Son H. Lee : Blend Calculator
- Patent:US3923243 02.12.1975 Daniel Barron : Ship board sonar range computer
- Patent:US3924104 02.12.1975 Daniel Barron : Noise and reverberation sonar range computer
- Patent:US3929081 30.12.1975 Ketterer, Stanley Joseph Singer Co. : Electro mechanical adder mechanism
- Patent:US3929279 30.12.1975 Hugh P.K. Dibley : Flight path calculator
- Patent:USD238282 30.12.1975 H. J. Shawen, R. D. Haney and J. L. Kohli : Financial Proof Machine or similar Article
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