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公开(公告)号：US3200680A
公开(公告)日：1965-08-17
申请号：US38648564
申请日：1964-07-27
Applicant: WARNER SWASEY CO
Inventor： COFFIN CLAUDE D
IPC: B23B7/02
CPC classification number: B23B7/02 , Y10T29/5109 , Y10T82/2521
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