US PATENT SUBCLASS 84 / 719
.~.~.~.~ Keyboard

Current as of: June, 1999
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84 /   HD   MUSIC

1  DF  INSTRUMENTS {9}
600  DF  .~ Electrical musical tone generation {5}
671  DF  .~.~ Electric analog oscillators {9}
718  DF  .~.~.~ Constructional details {3}
719.~.~.~.~ Keyboard

DEFINITION

Classification: 84/719

Keyboard:

(under subclass 718) Subject matter wherein the mechanical feature is a keyboard or a fret-board.

SEE OR SEARCH THIS CLASS, SUBCLASS:

691, for noise reduction with electric analog oscillators.

SEE OR SEARCH CLASS

341, Coded Data Generation and Conversion,

22+, for code selecting devices, e.g., keyboards or keypads.