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公开(公告)号：US2848043A
公开(公告)日：1958-08-19
申请号：US57801456
申请日：1956-04-13
Applicant: AMERICAN SCREEN PRODUCTS COMPA
Inventor： WINNAN RUSSELL M , SAXTAN BURTON W
IPC: E06B9/52
CPC classification number: E06B9/52
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