US PATENT SUBCLASS 367 / 77
.~.~.~ Radio wave

Current as of: June, 1999
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367 /   HD   COMMUNICATIONS, ELECTRICAL: ACOUSTIC WAVE SYSTEMS AND DEVICES

14  DF  SEISMIC PROSPECTING {4}
37  DF  .~ Land-reflection type {6}
76  DF  .~.~ Telemetry {2}
77.~.~.~ Radio wave

DEFINITION

Classification: 367/77

Radio wave:

(under subclass 76) Subject matter wherein the signals are converted to and transmitted as invisible electromagnetic radiation.