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公开(公告)号：US3513817A
公开(公告)日：1970-05-26
申请号：US3513817D
申请日：1968-07-23
Applicant: FRAM CORP
Inventor： KEARSLEY WALTER HUGH
CPC classification number: F02M31/06 , Y02T10/126 , Y10T137/86847
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