US PATENT SUBCLASS 381 / 161
.~ With mechanical amplifier arrangement


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

150  DF  ELECTRO-ACOUSTIC AUDIO TRANSDUCER {18}
161.~ With mechanical amplifier arrangement


DEFINITION

Classification: 381/161

With mechanical amplifier arrangement:

(under subclass 150) Subject matter having a vibrating solid element intermediate a conversion between mechanically increases the amplitude of the vibrations of the solid.