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公开(公告)号：US2688318A
公开(公告)日：1954-09-07
申请号：US28648452
申请日：1952-05-07
Applicant: STANDARD SCREW
Inventor： CARL VOORHIES , CORLETT WEBSTER D
IPC: F01L1/245
CPC classification number: F01L1/245
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