US PATENT SUBCLASS 84 / 26
.~.~.~.~.~ Grands

Current as of: June, 1999
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84 /   HD   MUSIC

1  DF  INSTRUMENTS {9}
*  DD  .~ Automatic {13}
7  DF  .~.~ Stringed {4}
13  DF  .~.~.~ Pianos {5}
24  DF  .~.~.~.~ Pneumatic type {10}
26.~.~.~.~.~ Grands {1}
27  DF  .~.~.~.~.~.~> Connections to piano action

DEFINITION

Classification: 84/26

Patents showing a pneumatic action built into a grand piano.