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公开(公告)号：US2921182A
公开(公告)日：1960-01-12
申请号：US75393058
申请日：1958-08-08
Applicant: TAYLOR BUFORD L
Inventor： TAYLOR BUFORD L
IPC: B63B45/00
CPC classification number: B63B45/00 , B63B45/02 , B63B2201/08
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