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公开(公告)号：US2592181A
公开(公告)日：1952-04-08
申请号：US72692847
申请日：1947-02-06
Applicant: PARTHEMORE JACOB A
Inventor： PARTHEMORE JACOB A
CPC classification number: B60C5/20 , B60C5/24 , Y10T152/10576
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