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公开(公告)号：US1151479A
公开(公告)日：1915-08-24
申请号：US1914836456
申请日：1914-05-05
Applicant: KURTZ KARL WM
Inventor： KURTZ KARL WM
IPC: E05F15/614 , E05F15/619
CPC classification number: E05F15/619 , E05F15/603 , E05F15/614 , E05Y2201/216 , E05Y2201/218 , E05Y2201/246 , E05Y2201/462 , E05Y2201/722 , E05Y2900/132 , Y10S292/03 , Y10S292/18 , Y10T292/1021
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