US PATENT SUBCLASS 84 / 18-- .~.~.~.~.~.~ Key actuators

US PATENT SUBCLASS 84 / 18
.~.~.~.~.~.~ Key actuators

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}
16	DF	.~.~.~.~ Constant power {1}
17	DF	.~.~.~.~.~ Electric control {1}
18		.~.~.~.~.~.~ Key actuators

DEFINITION

Classification: 84/18

The power acts directly on the keys. Most of the patents here and in the preceding subclass are of the roller-and-shoe type.