US PATENT SUBCLASS 381 / 26
.~ Stereo sound pickup device (microphone)


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381 /   HD   ELECTRICAL AUDIO SIGNAL PROCESSING SYSTEMS AND DEVICES

1  DF  BINAURAL AND STEREOPHONIC {8}
26.~ Stereo sound pickup device (microphone)


DEFINITION

Classification: 381/26

Stereo sound pickup device (microphone):

(under subclass 1) Subject matter including a single transducer system for converting sound waves into two or more independent sound signals.