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发明名称
Improvements in or relating to buoyant body attachments
摘要
申请公布号
GB462633(A)
申请公布日期
1937.03.12
申请号
GB19360013189
申请日期
1936.05.09
申请人
WILLIAM HARRY DOWNING
发明人
分类号
B63C9/125
主分类号
B63C9/125
代理机构
代理人
主权项
地址
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