US PATENT SUBCLASS 984 / 61
.~.~ Keyboards; Keys {G10C 3/12}

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

50  DD  PIANOS {nonmusical aspects of toy pianos A63H 5/00; Aspects of automatic actuation subclasses 200+; Combinations of microphones, pick-ups or amplifiers with musical instruments subclasses 300+} {G10C} {4}
55  DD  .~ Details of, accesories for, pianos or the like {G10C 3/00} {10}
61.~.~ Keyboards; Keys {G10C 3/12} {1}
62  DD  .~.~.~> For actuation by the feet {G10C 3/14}