US PATENT SUBCLASS 84 / 150
.~.~.~.~ Playing on wind and rewind


Current as of: June, 1999
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84 /   HD   MUSIC

1  DF  INSTRUMENTS {9}
*  DD  .~ Automatic {13}
115  DF  .~.~ Selectors {8}
146  DF  .~.~.~ Trackers and sheets {4}
150.~.~.~.~ Playing on wind and rewind


DEFINITION

Classification: 84/150

The sheet has two sets of perforations, one set to be used as usual, the other to be used during rewinding.