US PATENT SUBCLASS 384 / 566-- .~.~.~.~.~ Helical feature

US PATENT SUBCLASS 384 / 566
.~.~.~.~.~ Helical feature

Current as of: June, 1999
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384 /	HD	BEARINGS

91	DF	ROTARY BEARING {8}
445	DF	.~ Antifriction bearing {9}
456	DF	.~.~ Radial bearing {9}
548	DF	.~.~.~ Roller bearing {16}
565	DF	.~.~.~.~ Roller structure {3}
566		.~.~.~.~.~ Helical feature

DEFINITION

Classification: 384/566

Helical feature:

(under subclass 565) Subject matter wherein the roller comprises helical structure.