US PATENT SUBCLASS 352 / 185
.~ With film beater


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

166  DF  CAMERA AND/OR PROJECTOR DRIVE MECHANISMS {14}
185.~ With film beater


DEFINITION

Classification: 352/185

(under subclass 166) Subject matter including an oscillating means to periodically engage and lengthen a loop of film strip which is otherwise being continuously shortened by other drive means.

SEE OR SEARCH CLASS

226, Advancing Material of Indeterminate Length,

113+, for plural material moving means generally including a bight former.