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公开(公告)号：US962126A
公开(公告)日：1910-06-21
申请号：US1908433181
申请日：1908-05-16
Applicant: CONS SAFETY PIN COMPANY
Inventor： CHURCH HERBERT B
CPC classification number: B21G3/04
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公开(公告)号：US1133363A
公开(公告)日：1915-03-30
申请号：US1908448301
申请日：1908-08-13
Applicant: CONS SAFETY PIN COMPANY
Inventor： CHURCH HERBERT B
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