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公开(公告)号：US3186703A
公开(公告)日：1965-06-01
申请号：US23783562
申请日：1962-11-15
Applicant: HENRY T PORTER
Inventor： STAPP LLOYD D
IPC: E05F11/50
CPC classification number: E05F11/505 , E05Y2201/482 , E05Y2900/55
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