US PATENT SUBCLASS 381 / 28
.~ Amplifier

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

1  DF  BINAURAL AND STEREOPHONIC {8}
28.~ Amplifier

DEFINITION

Classification: 381/28

Amplifier:

(under subclass 1) Subject matter including a device to increase the amplitude of the independent sound signals.

SEE OR SEARCH CLASS

330, Amplifiers, appropriate subclasses for an amplifier not having a specific source of input signals or a specific load.