US PATENT SUBCLASS 84 / 720
.~.~.~.~ Keyswitch structure

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}
720.~.~.~.~ Keyswitch structure

DEFINITION

Classification: 84/720

Keyswitch structure:

(under subclass 718) Subject matter wherein the mechanical feature is a keyswitch.

SEE OR SEARCH CLASS

200, Electricity: Circuit Makers or Breakers, appropriate subclasses for specific switch construction details.