Title:
Projection screen
Document Type and Number:
United States Patent 3220464

Inventors:
Wise, Glenn E.
Publication Date:
11/30/1965
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Assignee:
Wise, Glenn E.
Primary Class:
160/24
Other Classes:
160/290.100, 160/281
International Classes:
G03B21/58; G03B21/56
US Patent References:
0388161
0584723
0855769
1299986
2594864Gate or the like
2812810Projection screen
2855037Portable wall or panel structures and means for supporting same
2886047Portable sun and wind shield
2996954Screen for picture projection
3111723Room divider device


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