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公开(公告)号：US3258139A
公开(公告)日：1966-06-28
申请号：US37638364
申请日：1964-06-19
Applicant: PERFECTION STEEL BODY COMPANY
Inventor： RIDGEWAY EDWARD L
IPC: B60P1/44
CPC classification number: B60P1/4442
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