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公开(公告)号：US1848136A
公开(公告)日：1932-03-08
申请号：US37873829
申请日：1929-07-16
Applicant: MEISSNER EARL R
Inventor： MEISSNER EARL R
IPC: E05F15/12
CPC classification number: E05F15/619 , E05F15/622 , E05F17/004 , E05Y2201/722 , E05Y2900/132
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