US PATENT SUBCLASS 381 / 91
.~ Having microphone

Current as of: June, 1999
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381 /   HD   ELECTRICAL AUDIO SIGNAL PROCESSING SYSTEMS AND DEVICES

87  DF  HAVING NON-ELECTRICAL FEATURE (E.G., MOUNTING) {3}
91.~ Having microphone

DEFINITION

Classification: 381/91

Having microphone:

(under subclass 87) Subject matter where the specific container holds a microphone.

(1) Note. There are both claimed electrical features in this subclass as well as nonelectrical features.

SEE OR SEARCH THIS CLASS, SUBCLASS:

111+, for circuitry combined with a specific type of microphone.

122, for a microphone combined with an element having a diverse function, e.g., an amplifier.

355, for a housed microphone.

369, for a microphone capsule, per se.

375, for a microphone in particular support structure, wherein there is no claimed electrical feature of the transducer.