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公开(公告)号：US1295231A
公开(公告)日：1919-02-25
申请号：US17756717
申请日：1917-06-28
Applicant: GLEASON WORKS
Inventor： STEWART ARTHUR L , MCMULLEN FREDERICK E
CPC classification number: F16H55/0846 , Y10T74/19958
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