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公开(公告)号：US2706420A
公开(公告)日：1955-04-19
申请号：US39708153
申请日：1953-12-09
Applicant: GLEASON WORKS
Inventor： HARTMAN HERBERT G , MCMULLEN FREDERICK E , PATCHIN LLOYD C
IPC: B23F9/10
CPC classification number: B23F9/10
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