|
US3415980A
|
|
World wide magnetic variation computer
|
|
US3225138A
|
|
Apparatus for reducing brightness variation using photochromic material
|
|
US3119070A
|
|
Signal derivative detection device
|
|
US3219956A
|
|
Brushless rotary inductive devices
|
|
US3224281A
|
|
Base motion compensator for rate integral gyro
|
|
US3099748A
|
|
Photosensitive device for measuring rotation about a line of sight to the sun
|
|
US3225345A
|
|
Digital-to-analog converter
|
|
US2999228A
|
|
Memory device for analog computers
|
|
US3075096A
|
|
Converter of heat into electrical energy
|
|
US2985026A
|
|
High accuracy ball and disc integrator
|
|
US2999968A
|
|
Switching circuit for nonlinear servo integral compensation
|
|
US2979674A
|
|
Transistor-magnetic core pulse width modulating and amplifying device
|
|
US3009148A
|
|
Audio-visual r.d.f. adapter
|
|
US2916683A
|
|
Induction motor reverser
|
|
US2982899A
|
|
Pressure sensitive contour follower
|
|
US3012720A
|
|
Gear tooth counter
|
|
US2895339A
|
|
Correction system for mass shift in gyros
|
|
US3001102A
|
|
Integrated plug-in unit
|
|
US3002389A
|
|
Force measuring apparatus
|
|
US2923827A
|
|
Light quantizing computer
|
