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公开(公告)号：US1656633A
公开(公告)日：1928-01-17
申请号：US14348126
申请日：1926-10-22
Applicant: GLEASON WORKS
Inventor： HEAD ERNEST C , EYVIND FINSEN , CARLSEN LEONARD O
IPC: B23F5/12
CPC classification number: B23F5/12 , Y10S451/90 , Y10T409/106837
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