Screen web tensioner
United States Patent 2696249
US Patent References:
/0737769.html
- - 0737769

/1016493.html
- - 1016493

/1097957.html
- - 1097957

Picture screen supporting structure
- - 2434071


Inventors:
Prokop, Frank J.
Pellar, Marshall M.
Publication Date:
12/07/1954
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Assignee:
DA LITE SCREEN COMPANY INC
Primary Class:
160/24
Other Classes:
160/315, 242/384.700, 160/302
International Classes:
G03B21/58; G03B21/56