US PATENT SUBCLASS 84 / 90
.~.~.~.~.~ With keys

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  DF  .~.~.~.~ Pneumatic action {2}
90.~.~.~.~.~ With keys

DEFINITION

Classification: 84/90

Pneumatic organs with both automatic and key control.