US PATENT SUBCLASS 352 / 202
.~ With ventilation and cooling

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

198  DF  PROJECTION LIGHT SOURCES {5}
202.~ With ventilation and cooling

DEFINITION

Classification: 352/202

(under subclass 198) Subject matter in which means are provided to cool the light source by means of a directed flow of air.

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211, for shutters which serve to cool the film as well as interrupt the light.

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362, Illumination,

294, for structure for projector light sources with ventilation and cooling where no significant motion picture structure is claimed.