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公开(公告)号：US2896558A
公开(公告)日：1959-07-28
申请号：US39892553
申请日：1953-12-18
Applicant: BYRNE DOORS INC
Inventor： COLBURN JR NORMAN E
IPC: E04D13/035 , F24F7/02
CPC classification number: E04D13/0351 , F24F7/02
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