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公开(公告)号：US2781137A
公开(公告)日：1957-02-12
申请号：US27579652
申请日：1952-03-10
Applicant: MASONITE CORP
Inventor： LESNIAK FRANK G , STUBBE WALTER A
IPC: B30B7/02
CPC classification number: B30B7/023
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