Projection screen support structure

Details Projection screen support structure Projection screen support structure

1977-02-22

1978-08-15

Wintercorn, Richard A.

Supports

Pipe or cable

Extending through plate

3810291, 248165, G03B 2156

Patent

active

041068521

ABSTRACT:
A highly portable projection screen support structure including an extendable center support pole and two extendable side support poles. The structure is adapted to support a very wide horizontally disposed rectangular screen of 4.5 to 1 or greater, or a conventional screen in a planar orientation.

REFERENCES:
patent: 3255988 (1966-06-01), Albee, Jr.
patent: 3942869 (1976-03-01), Portner et al.
patent: 4017152 (1977-04-01), Allen

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