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公开(公告)号:US2932272A
公开(公告)日:1960-04-12
申请号:US77528358
申请日:1958-11-20
Applicant: INTERNAT MACGREGOR ORGANIZATIO
Inventor: BEAS URBAN J
IPC: B63B19/203
CPC classification number: B63B19/203
公开(公告)号:US2932272A
公开(公告)日:1960-04-12
申请号:US77528358
申请日:1958-11-20
Applicant: INTERNAT MACGREGOR ORGANIZATIO
Inventor: BEAS URBAN J
IPC: B63B19/203
CPC classification number: B63B19/203