Inventor
SEITZ MARTIN V
US4 patents
Patents
4 patentsUS4312070AJan 19, 1982
Digital encoder-decoder
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US5559522ASep 24, 1996
Antenna positioning apparatus capable of substantially vertical orientation
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US5396643AMar 7, 1995
Geographic-area selective low-earth satellite-based paging broadcast system and method
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US3956710AMay 11, 1976
Phase locked loop lock detector and method
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