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公开(公告)号：US3213567A
公开(公告)日：1965-10-26
申请号：US31170563
申请日：1963-09-26
Applicant: GLEASON WORKS
Inventor： KING CHARLES B , TREVERTON RICHARD W
IPC: B24B53/07
CPC classification number: B24B53/07
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公开(公告)号：US3138995A
公开(公告)日：1964-06-30
申请号：US22902362
申请日：1962-10-08
Applicant: GLEASON WORKS
Inventor： TREVERTON RICHARD W
CPC classification number: B23F21/226 , B23F9/10 , Y10T407/1705 , Y10T409/103816
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