US PATENT SUBCLASS 84 / 89
.~.~.~.~ Pneumatic action

Current as of: June, 1999
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84 /   HD   MUSIC

1  DF  INSTRUMENTS {9}
*  DD  .~ Automatic {13}
83  DF  .~.~ Wind {3}
84  DF  .~.~.~ Organs {5}
89.~.~.~.~ Pneumatic action {2}
90  DF  .~.~.~.~.~> With keys
91  DF  .~.~.~.~.~> Pipe organ

DEFINITION

Classification: 84/89

Pneumatic organs with automatic control only.