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公开(公告)号：US1735373A
公开(公告)日：1929-11-12
申请号：US15004526
申请日：1926-11-22
Applicant: WILFRED BONNIKSEN CYRIL , SYDNEY BARRATT
Inventor： WILFRED BONNIKSEN CYRIL , SYDNEY BARRATT
IPC: B63B45/00
CPC classification number: B63B45/00 , B63B2201/06 , B63B2201/10
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