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Rechnerlexikon

Die große Enzyklopädie des mechanischen Rechnens

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Pfeil.gif Patentdatenbank  Pfeil.gif USA  Pfeil.gif 1974

Patente aus den USA 1974


  • Patent:US3782626 01.01.1974 Iosif Hondrea : Slide Rule with Improved Calculating Capacity
  • Patent:US3784093 08.01.1974 Kent H. Bennett : Fractormatic Slide Rule
  • Patent:US3784797 08.01.1974 Joseph G. Kroll : Calculator for Determining the Specification of Cranes
  • Patent:US3785240 15.01.1974 Elgie E. Hill : Chord Teaching Device for a Dtringed Instrument
  • Patent:US3785553 15.01.1974 Willard D. Brown : Apparatus for determining the unit value of a line of type characters
  • Patent:US3788541 29.01.1974 Norman Garner : Computation Device and Method
  • Patent:US3790074 05.02.1974 Zemanek E, Zemanek R : Universal Unit-Converting Slide Rule
  • Patent:US3791254 12.02.1974 Müller, Egon : Teaching and Demonstrating the Harmonic System
  • Patent:US3792242 12.02.1974 Goodwin F. Hanson : Pocket Size Manual Adding Machine
  • Patent:USD230375 12.02.1974 Donald L. Forsythe Jerome U. Brown NCR : Accounting machine or similar article
  • Patent:US3795363 05.03.1974 Paul Marie Esteve Henry Fabre : Indicator of the Maximum Torque Usable On a Helicopter Driven By a Turbo Motor
  • Patent:US3795795 05.03.1974 Capron R. Gulbrandsen : Currency Converter
  • Patent:US3803389 09.04.1974 Richard L. Yelverton : Course Line Computer
  • Patent:USD231357 16.04.1974 M. R. Meyers and M. Langieri : Educational Mathematical Toy
  • Patent:US3807629 30.04.1974 Fukui O, Ishii A Matsuo Sangyo Kk : Slide Rule For Time Difference
  • Patent:US3811205 21.05.1974 Mary Ann Pitzler : Sensorial Counting Board
  • Patent:US3812729 28.05.1974 Stanley J. Ketterer Singer Comp. : Electromechanical disc adder mechanisms
  • Patent:US3814308 04.06.1974 Andrew Kohan : Calculating Device
  • Patent:USRE28033 04.06.1974 J. E. Hannon : Calculator for Making Patterns
  • Patent:USD231796 11.06.1974 W. K. Schwarz and D. J. Schlink : Conversion Calculator
  • Patent:US3820245 28.06.1974 Dominic F. Yozzo : Drawing Projector for Reproducing Curves
  • Patent:US3821521 28.06.1974 Riehle, Harald : Computing or Calculating Device
  • Patent:US3822038 02.07.1974 Irving C. Olson : Multicoupler Percent Frequency Separation Calculator
  • Patent:US3823478 16.07.1974 George T. Farmos : Drafting Device
  • Patent:US3824692 23.07.1974 Guffey, John W.; Gillham, Richard D. : Lift planning apparatus
  • Patent:US3825180 23.07.1974 John D.Gallagher : Aircraft Approach Guide
  • Patent:US3825181 23.07.1974 Philip M. Banner : Tide and time calculating device
  • Patent:USD232194 23.07.1974 R. L. Conway, R. V. Jones and D. L. Schaum : Teller Station Printer
  • Patent:USD232195 23.07.1974 R. L. Conway, R. V. Jones and D. L. Schaum : Teller Station Printer
  • Patent:US3829658 13.08.1974 Stanley Newman : Navigational Computers
  • Patent:US3829663 13.08.1974 Wendell Y. Huo : Slide Rule with Decimal Point Location Means
  • Patent:US3831839 27.08.1974 Albert Boardman : Racing Calculator
  • Patent:US3831840 27.08.1974 Faucheux P Fresa Ets : Composite Slide Rule
  • Patent:US3834614 10.09.1974 Noble A Noble A : Decimal Point Indicator For Slide Rule
  • Patent:US3835298 10.09.1974 Joseph D. DeAndrea : Calculating mathematical functions
  • Patent:US3835299 10.09.1974 Peter Baldwin Turney : Navigational Computers
  • Patent:US3837569 24.09.1974 Robert C. Bradbury, Joseph H. Sullivan : Metric Conversion Ruler
  • Patent:USD232945 24.09.1974 R. L. Conway, R. V. Jones and D. L. Schaum : Teller Station
  • Patent:US3843047 22.10.1974 Kouichi Otsuka, Yukio Fujimi : Writing Instrument with Counter
  • Patent:US3843048 22.10.1974 Haase, Kurt : Ruler Device for Decimal-Octal Conversion
  • Patent:US3850072 26.11.1974 Dudley Kilburn Maurice Fuller : Improvements in or Relating to Instructional Apparatus for Use in Learning the Construczion of Musical Chords
  • Patent:USD233799 26.11.1974 H. Finkel : Calculator Housing
  • Patent:US3853264 10.12.1974 J. Warren Hovorka : Football statistic calculating and recording rule
  • Patent:US3853265 10.12.1974 Heinz Kunert : Nomogram Type Calculator


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