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公开(公告)号：US2280665A
公开(公告)日：1942-04-21
申请号：US21029038
申请日：1938-05-26
Applicant: STANCO INC
Inventor： SCHMITTER BERNARD A
IPC: B23P19/00
CPC classification number: B23P19/008 , Y10T29/53322 , Y10T29/53374 , Y10T29/53391 , Y10T29/53657
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