US PATENT SUBCLASS 84 / 744
.~.~.~.~ Keyboard

Current as of: June, 1999
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84 /   HD   MUSIC

1  DF  INSTRUMENTS {9}
600  DF  .~ Electrical musical tone generation {5}
723  DF  .~.~ Transducers {9}
743  DF  .~.~.~ Constructional details {3}
744.~.~.~.~ Keyboard

DEFINITION

Classification: 84/744

Keyboard:

(under subclass 743) Subject matter wherein mechanical feature is a keyboard or a fretboard.

SEE OR SEARCH THIS CLASS, SUBCLASS:

423, for keyboard structure.

719, for keyboard with electric analog oscillators.