US PATENT SUBCLASS 84 / 49
.~.~.~.~.~.~ Hand controllers

Current as of: June, 1999
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84 /   HD   MUSIC

1  DF  INSTRUMENTS {9}
*  DD  .~ Automatic {13}
7  DF  .~.~ Stringed {4}
13  DF  .~.~.~ Pianos {5}
24  DF  .~.~.~.~ Pneumatic type {10}
33  DF  .~.~.~.~.~ Expression mechanism {8}
49.~.~.~.~.~.~ Hand controllers

DEFINITION

Classification: 84/49

Levers or buttons for controlling expression. The patents generally show also tempo-controllers.

(1) Note. See this class, subclasses 164 and 169.