US PATENT SUBCLASS 367 / 129
.~ With plurality of transducers

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

118  DF  DISTANCE OR DIRECTION FINDING {6}
129.~ With plurality of transducers

DEFINITION

Classification: 367/129

With plurality of transducers:

(under subclass 118) Subject matter having two or more means to convert acoustic wave energy to an electrical signal.