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发明名称
Improvements in propellors for driving of ships and the like
摘要
申请公布号
GB325538(A)
申请公布日期
1930.02.21
申请号
GB19280034116
申请日期
1928.11.21
申请人
BERTIE CHARLES BENNETT
发明人
分类号
B63H3/00
主分类号
B63H3/00
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