US PATENT SUBCLASS 84 / 216
.~.~.~ Expression devices


Current as of: June, 1999
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84 /   HD   MUSIC

1  DF  INSTRUMENTS {9}
173  DF  .~ Stringed {10}
174  DF  .~.~ Pianos {19}
216.~.~.~ Expression devices {5}
217  DF  .~.~.~.~> Dampers lifted
218  DF  .~.~.~.~> Dampers held
219  DF  .~.~.~.~> Pianissimo devices {2}
224  DF  .~.~.~.~> Auxiliary strikers
225  DF  .~.~.~.~> Pedal mechanism {5}


DEFINITION

Classification: 84/216

Various means for changing the quality of tone of a piano.

(1) Note. See Note to this class, subclass 189.