US PATENT SUBCLASS 84 / 80
.~.~.~.~.~ Key slips


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}
*  DD  .~.~.~.~ Cases {3}
80.~.~.~.~.~ Key slips


DEFINITION

Classification: 84/80

The key-slip or part of it is movable to uncover or shift various parts preparatory to playing.