US PATENT SUBCLASS 353 / 91
.~ Solenoid operated

Current as of: June, 1999
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353 /   HD   OPTICS: IMAGE PROJECTORS

88  DF  SHUTTER {4}
91.~ Solenoid operated

DEFINITION

Classification: 353/91

(under subclass 88) Subject matter including a periodically-energized electromagnet which either directly operates the shutter or which operates some other part of the projector which is connected to the shutter.