US PATENT SUBCLASS 367 / 171
.~.~ Liquid filled transducer

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

140  DF  SIGNAL TRANSDUCERS {4}
141  DF  .~ Underwater type {15}
171.~.~ Liquid filled transducer

DEFINITION

Classification: 367/171

Liquid filled transducer:

(under subclass 141) Subject matter wherein the transducer is filled with an acoustically transparent liquid.

SEE OR SEARCH THIS CLASS, SUBCLASS:

166, for fluid-filled piezoelectric transducers.