US PATENT SUBCLASS 84 / 23-- .~.~.~.~.~ With expression

US PATENT SUBCLASS 84 / 23
.~.~.~.~.~ With expression

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}
19	DF	.~.~.~.~ Electric power {2}
23		.~.~.~.~.~ With expression

DEFINITION

Classification: 84/23

(under subclass 21) Devices similar to those of ..., but the piano-key is not involved.