US PATENT SUBCLASS 352 / 147
.~.~ Single frame projection

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

143  DF  WITH FILM STRIP FIRE PREVENTION OR ISOLATION {4}
146  DF  .~ Film cooling {2}
147.~.~ Single frame projection

DEFINITION

Classification: 352/147

(under subclass 146) Subject matter including means to control the temperature of the film said means being actuated

by stopping the film strip advancing means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

169, for projector drive means to advance the film strip an interval of one frame.

174+, for projector drive means with starting and or stopping means.