US PATENT SUBCLASS 984 / 52
.~.~ Of upright pianos {G10C 1/02}

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}
51  DD  .~ General design of pianos or like stringed musical instruments with keyboards {G10C 1/00} {3}
52.~.~ Of upright pianos {G10C 1/02}