|
US4554509A
|
|
Frequency shift keyed demodulation system
|
|
US3588030A
|
|
Apparatus for printing either continuous or predetermined lengths of film
|
|
US3495783A
|
|
Apparatus for splicing moving film
|
|
US3543164A
|
|
Automatic frequency control for a single sideband receiver
|
|
US3500399A
|
|
Frequency translation process and apparatus therefor
|
|
US3549805A
|
|
Optical scanning system with multiple channel output
|
|
US3510590A
|
|
Electronic apparatus for quantizing a digital input signal for providing an audio output signal thereof
|
|
US3497834A
|
|
Sonic delay line using longitudinal pressure waves to excite slower transverse waves in a membrane
|
|
US3483467A
|
|
System for determining the transfer function of an electrical apparatus including signal amplitude to pulse width conversion means
|
|
US3529184A
|
|
Low power transistor trigger circuit
|
|
US3510191A
|
|
Optical scanning system
|
|
US3471772A
|
|
Instrument for measuring the range and approximate size of buried or hidden metal objects
|
|
US3444386A
|
|
Rotary scanner imaging device with mirrors mounted therein for reflecting radiation energy to photodetector means
|
|
US3405246A
|
|
Ultrasonic switch for high speed electrical switching
|
|
US3454786A
|
|
Nonlinear function generator
|
|
US3383998A
|
|
Rapid processing film cassette
|
|
US3383920A
|
|
Circuit for making temperature measurements
|
|
GB987201A
|
|
Improved electronic memory attachment for accounting machines or the like
|
|
US3161766A
|
|
Voltage ratio to time difference translator
|
|
US3201544A
|
|
Compact latching relay employing an improved latching machanism
|
