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公开(公告)号：US1280808A
公开(公告)日：1918-10-08
申请号：US21556618
申请日：1918-02-06
Applicant: HOFMANN MORGAN RUBBER COMPANY
Inventor： MORGAN DELEVAN R
CPC classification number: B60C5/16 , Y10T152/10126 , Y10T152/10738
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