US PATENT SUBCLASS 84 / 445
.~.~ Transposers

Current as of: June, 1999
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84 /   HD   MUSIC

1  DF  INSTRUMENTS {9}
*  DD  .~ General features {7}
445.~.~ Transposers {4}
446  DF  .~.~.~> Auxiliary keyboard
447  DF  .~.~.~> Keyboard shifted
448  DF  .~.~.~> Intermediate parts shifted
449  DF  .~.~.~> Sounders shifted

DEFINITION

Classification: 84/445

Devices whereby each sound produced is systematically different in pitch from that normally associated with the key struck. Includes pneumatic or electric devices.

(1) Note. See this class, subclass 442.