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公开(公告)号：US1413244A
公开(公告)日：1922-04-18
申请号：US36315820
申请日：1920-03-04
Applicant: ROUGIER THORNE
Inventor： ROUGIER THORNE
IPC: B63B45/00
CPC classification number: B63B45/00 , B63B2201/06
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