US PATENT SUBCLASS 84 / 182
.~.~.~.~ Swells

Current as of: June, 1999
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84 /   HD   MUSIC

1  DF  INSTRUMENTS {9}
173  DF  .~ Stringed {10}
174  DF  .~.~ Pianos {19}
177  DF  .~.~.~ Cases {6}
182.~.~.~.~ Swells

DEFINITION

Classification: 84/182

The case has shutters or slides to control the escape of sound.

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189, 346 and 372.