US PATENT SUBCLASS 352 / 230
.~.~ Closure-operated

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

221  DF  GATES {9}
229  DF  .~ With gate moving and/or holding structure {1}
230.~.~ Closure-operated

DEFINITION

Classification: 352/230

(under subclass 229) Subject matter wherein the gate moving and/or holding structure includes an element actuated by the operation of the closure of the motion picture camera or projector housing.