US PATENT SUBCLASS 352 / 182
.~.~ By braking

Current as of: June, 1999
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352 /   HD   OPTICS: MOTION PICTURES

166  DF  CAMERA AND/OR PROJECTOR DRIVE MECHANISMS {14}
180  DF  .~ With speed regulation or selection {2}
182.~.~ By braking

DEFINITION

Classification: 352/182

(under subclass 180) Subject matter in which the regulation or selection means includes a member frictionally engaging a driven element to slow the speed of said driven element.