US PATENT SUBCLASS 367 / 182
.~.~ Moving coil

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

140  DF  SIGNAL TRANSDUCERS {4}
178  DF  .~ Receivers {6}
182.~.~ Moving coil {2}
183  DF  .~.~.~> Spider spring
184  DF  .~.~.~> Having arcuate movement

DEFINITION

Classification: 367/182

Moving coil:

(under subclass 178) Subject matter in which acoustic wave forces move an electric coil relative to a ferromagnetic core so as to induce electric signals in the coil.