US PATENT SUBCLASS 84 / 425
.~.~.~ Auxiliary


Current as of: June, 1999
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84 /   HD   MUSIC

1  DF  INSTRUMENTS {9}
*  DD  .~ General features {7}
423 R  DF  .~.~ Keyboards {12}
425.~.~.~ Auxiliary {1}
426  DF  .~.~.~.~> Pedal


DEFINITION

Classification: 84/425

Keys of one set operate, respectively, keys of another set.