US PATENT SUBCLASS 381 / 113
.~ With electrostatic microphone

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

111  DF  CIRCUITRY COMBINED WITH SPECIFIC TYPE MICROPHONE OR LOUDSPEAKER {6}
113.~ With electrostatic microphone

DEFINITION

Classification: 381/113

With electrostatic microphone:

(under subclass 111) Subject matter where the transducer is an electrostatic microphone.

SEE OR SEARCH THIS CLASS, SUBCLASS:

173, for an electrostatic microphone, per se.