US PATENT SUBCLASS 381 / 115
.~ With magnetic 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}
115.~ With magnetic microphone

DEFINITION

Classification: 381/115

With magnetic microphone:

(under subclass 111) Subject matter where the transducer is a magnetic microphone.

SEE OR SEARCH THIS CLASS, SUBCLASS:

176, for a magnetic microphones, per se.