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公开(公告)号：US1786697A
公开(公告)日：1930-12-30
申请号：US29832028
申请日：1928-08-08
Applicant: GLEASON WORKS
Inventor： BULLOCK EDWARD W , SCHAUSEIL ALBERT P , DRAESEKE ALFRED W , GALLOWAY CLARENCE T , HILL MAXWELL H
CPC classification number: B23F23/125 , B23F9/10 , B23F23/06 , Y10T29/5128 , Y10T409/108268
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