US PATENT SUBCLASS 984 / 4
.~.~.~ Electrically operated {G10B 1/04}

Current as of: June, 1999
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984 /   HD   MUSICAL INSTRUMENTS

1  DD  ORGANS; HARMONIUMS {mouth organs or accordions subclasses 100+; Aspects of automatic actuation subclasses 200+; Combinations of microphones, pick-ups or amplifiers with musical instruments, electric organs subclasses 300+} {G10B} {2}
2  DD  .~ General design of organs, harmoniums, or like wind-actuated musical instruments {G10B 1/00} {2}
3  DD  .~.~ Of organs {G10B 1/02} {2}
4.~.~.~ Electrically operated {G10B 1/04}