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3394342
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Information
Patent Grant
3394342
References
Source
Patent Number
3,394,342
Date Filed
Not available
Date Issued
Tuesday, July 23, 1968
56 years ago
CPC
G01S15/931 - between land vehicles; between land vehicles and fixed obstacles
G01S1/72 - using ultrasonic, sonic or infrasonic waves
G08B13/1627 - using Doppler shift detection circuits
G01S2015/939 - vertical stacking of sensors
US Classifications
367 - Communications, electrical: acoustic wave systems and devices
342 - Communications: directive radio wave systems and devices
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