Holder for overhead projection system transparencies

Details Holder for overhead projection system transparencies Holder for overhead projection system transparencies

1987-10-14

1988-11-29

Haroian, Harry N.

Optics: image projectors

Picture carrier

402 27, 353DIG5, G03B 2100

Patent

active

047877383

ABSTRACT:
A holder for a plurality of overhead projection system transparencies includes a ruler-like bar provided with suction cups for attaching the bar to the stage of the projector and U-shaped arms for engaging the holes provided along one edge of each transparency. The rear legs of the arms are rotatably received in bosses provided along the rear edge of the bar and the front legs releasably engage posts at the front edge of the bar.

REFERENCES:
patent: 1344971 (1920-06-01), Allison
patent: 3709590 (1973-01-01), Bisberg
patent: 4498746 (1985-02-01), Wright

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