US PATENT SUBCLASS 84 / 189
.~.~.~ Resonance 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}
189.~.~.~ Resonance devices {3}
190  DF  .~.~.~.~> Supports or platforms
191  DF  .~.~.~.~> Insulators
192  DF  .~.~.~.~> Sounding boards {4}

DEFINITION

Classification: 84/189

Devices to communicate to the air vibrations due to the

strings or to modify them in loudness or quality. These devices do not directly affect the movement of the strings.

(1) Note. Some expression devices (subclass 216, etc.) might come under this broad definition; but most of them affect the amplitude or form of vibration of the strings and are under control of the player.

SEE OR SEARCH THIS CLASS, SUBCLASS:

182, 224, 234, 294, and 295.