US PATENT SUBCLASS 84 / 386-- .~.~.~ Pitch-changing devices

US PATENT SUBCLASS 84 / 386
.~.~.~ Pitch-changing devices

Current as of: June, 1999
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84 /	HD	MUSIC

1	DF	INSTRUMENTS {9}
330	DF	.~ Wind {5}
380 R	DF	.~.~ Wood winds {8}
386		.~.~.~ Pitch-changing devices

DEFINITION

Classification: 84/386

Devices for changing the key or the pitch; transposers.