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公开(公告)号：US2409240A
公开(公告)日：1946-10-15
申请号：US49645243
申请日：1943-07-28
Applicant: GLEASON WORKS
Inventor： BARKER PAUL F , HARTMAN HERBERT G , GALLOWAY CLARENCE T , KUNES BERNARD M
IPC: B24B53/04
CPC classification number: B24B53/04
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