US PATENT SUBCLASS 352 / 135
.~ Projectors with alternately operable shutters

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

133  DF  PLURAL {2}
135.~ Projectors with alternately operable shutters

DEFINITION

Classification: 352/135

(under subclass 133) Subject matter including plural projectors whose shutter mechanisms are synchronized to alternately project motion picture frames from each of the projectors.