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公开(公告)号：US1676064A
公开(公告)日：1928-07-03
申请号：US1998225
申请日：1925-04-01
Applicant: VREELAND CHARLES E
Inventor： VREELAND CHARLES E
IPC: E05F15/12
CPC classification number: E05F15/63 , E05F17/004 , E05Y2201/434 , E05Y2800/73 , E05Y2900/132 , E05Y2900/146
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