US PATENT SUBCLASS 340 / 384.73
.~.~ With sound transducer details

Current as of: June, 1999
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340 /   HD   COMMUNICATIONS: ELECTRICAL

384.1  DF  AUDIBLE INDICATION {11}
384.7  DF  .~ Electronic {3}
384.73.~.~ With sound transducer details

DEFINITION

Classification: 340/384.73

With sound transducer details:

(under subclass 384.7) Subject matter including at least a structural element of the sound transducer.

(1) Note. The structural element includes, for example, coil, core, diaphragm, etc. or supports therefor.

SEE OR SEARCH CLASS

381, Electrical Audio Signal Processing Systems and Devices,

150+, for nonindicating Electro Acoustic Audio Transducer.