Picture poster viewer

Details Picture poster viewer Picture poster viewer

G - Physics

09

F

40/12

G09F 11/295 (2006.01)

Patent

CA 1036352

ABSTRACT OF THE DISCLOSURE A movable picture poster supported by a take-up roller and a supply roller. The drive mechanism of this picture poster unit is composed of means to vary speed, vary direction, to start and stop as well as means to control the time during which the picture poster is exposed for viewing.

258088

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