US PATENT SUBCLASS 84 / 147
.~.~.~.~ Electric


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}
147.~.~.~.~ Electric


DEFINITION

Classification: 84/147

Electric circuits are controlled instead of pneumatic ducts.

(1) Note. See this class, subclass 160.