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US3842362A
|
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Adjustable parallel-t network
|
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US3778839A
|
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Double ridged wave guide feed for signal antenna
|
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US3686574A
|
|
Self-correcting afc system
|
|
US3739277A
|
|
Digital data transmission system utilizing phase shift keying
|
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US3369249A
|
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Electrocardiograph
|
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US3388282A
|
|
Biased crossed field dynamic electron multiplier
|
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US3257614A
|
|
Frequency measuring utilizing reflected waves
|
|
US3246170A
|
|
Sweep and function generator employing difference amplifier controlling varaible reactor
|
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US3153194A
|
|
Common oscillator transceiver with independent receiver tone control means
|
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US3315184A
|
|
Flexible connector
|
|
US3148900A
|
|
Pipe to plate coupling
|
|
US3241064A
|
|
Spectrum analyzer including means for generating a marker signal indicating a selected filter channel
|
|
US3215779A
|
|
Digital data conversion and transmission system
|
|
US3151302A
|
|
Automatic gain control circuit utilizing voltage variable capacitor
|
|
US3041397A
|
|
Telegraphic keyer
|
|
US3107333A
|
|
Regenerative circuit in an i. f. amplifier stage
|
|
US3177444A
|
|
Frequency generator with heterodyne frequency control
|
|
US3196939A
|
|
Heat exchanger, reservoir, fan and pump assembly
|
|
US2987676A
|
|
Pulse generator
|
|
US2915711A
|
|
Suppressed carrier modulating system
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