US PATENT SUBCLASS 84 / 372
.~.~.~ Swells

Current as of: June, 1999
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84 /   HD   MUSIC

1  DF  INSTRUMENTS {9}
330  DF  .~ Wind {5}
351  DF  .~.~ Reed organs {10}
372.~.~.~ Swells

DEFINITION

Classification: 84/372

Mute, draw-stop, or shutters operated by knee or foot lever or bellows.