US PATENT SUBCLASS 84 / 166
.~.~.~.~ With projections

Current as of: June, 1999
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84 /   HD   MUSIC

1  DF  INSTRUMENTS {9}
*  DD  .~ Automatic {13}
115  DF  .~.~ Selectors {8}
161  DF  .~.~.~ Note sheets {5}
166.~.~.~.~ With projections

DEFINITION

Classification: 84/166

The sheet or disk has projections, sometimes adjustable, instead of perforations.

(1) Note. See this class, subclass 97, and indented subclasses.