US PATENT SUBCLASS 29 / 609.1
.~.~.~ Acoustic transducer

Current as of: June, 1999
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29 /   HD   METAL WORKING

592  DF  METHOD OF MECHANICAL MANUFACTURE {54}
592.1  DF  .~ Electrical device making {14}
602.1  DF  .~.~ Electromagnet, transformer or inductor {6}
609.1.~.~.~ Acoustic transducer

DEFINITION

Classification: 29/609.1

Acoustic transducer:

(under subclass 602.1) Process wherein the device either (1) includes wires mounted for vibration, and means to induce vibrations in the wires or (2) converts electromagnetic energy to sound energy or vice versa.