Transparency folder and holder apparatus

Details Transparency folder and holder apparatus Transparency folder and holder apparatus

1993-08-23

1994-06-14

Cuchlinski, Jr., William A.

Optics: image projectors

Picture carrier

353DIG5, G03B 2100

Patent

active

053214510

ABSTRACT:
Folder apparatus for holding and positioning a plurality of transparencies for projection by an overhead projector includes a base panel element with two wing panels extending outwardly and in opposite directions from and secured to the base element. The transparencies are disposed against one wing panel and are movable from the position against the one panel to a position on the base panel for projection, and are movable from the projection position on the base panel to a storage position against the second panel. Transparencies include hook elements which move in slots or tracks secured to the base panel.

REFERENCES:
patent: 3110217 (1963-11-01), Millner et al.
patent: 3561862 (1971-02-01), Albee, Jr.
patent: 3709590 (1973-01-01), Bisberg
patent: 3913740 (1975-10-01), Bisberg
patent: 4137650 (1979-02-01), Hayes
patent: 4679923 (1987-07-01), Nielser

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