US PATENT SUBCLASS 29 / 594
.~.~ 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}
594.~.~ Acoustic transducer

DEFINITION

Classification: 29/594

Acoustic transducer:

(under subclass 592.1) Process for making a device which converts to sound energy to electrical energy or vice versa.

SEE OR SEARCH CLASS

381, Electrical Audio Signal Processing Systems and Devices,

150+,.