US PATENT SUBCLASS 84 / 471 R
.~.~ Charts or boards


Current as of: June, 1999
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84 /   HD   MUSIC

453  DF  ACCESSORIES {6}
470 R  DF  .~ Teaching devices {4}
471 R.~.~ Charts or boards {5}
472  DF  .~.~.~> Easel type
473  DF  .~.~.~> With transposing slide
474  DF  .~.~.~> With transposing dial
475  DF  .~.~.~> For transcribing
471 SR  DF  .~.~.~> Slide rules

Unofficial Alpha Subclasses: R SR

DEFINITION

Classification: 84/471

Various kinds of charts.