US PATENT SUBCLASS 84 / 484
.~.~.~ For tempo


Current as of: June, 1999
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84 /   HD   MUSIC

453  DF  ACCESSORIES {6}
470 R  DF  .~ Teaching devices {4}
477 R  DF  .~.~ Indicators {5}
484.~.~.~ For tempo


DEFINITION

Classification: 84/484

Devices for indicating the tempo or rhythm.