US PATENT SUBCLASS 367 / 159
.~.~.~ Elongated cylindrical element

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}
157  DF  .~.~ Piezoelectric {9}
159.~.~.~ Elongated cylindrical element

DEFINITION

Classification: 367/159

Elongated cylindrical element:

(under subclass 157) Subject matter wherein piezoelectric matrial is in the shape of an elongated cylinder.