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公开(公告)号：US2651845A
公开(公告)日：1953-09-15
申请号：US907748
申请日：1948-02-18
Applicant: TIMKEN ROLLER BEARING CO
Inventor： KIEHL ROYAL D , WAGENHALS ROBERT E
IPC: G01B5/20
CPC classification number: G01B5/201
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