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发明名称
Improvements in manually operated screw propelling mechanism for boats
摘要
申请公布号
GB346897(A)
申请公布日期
1931.04.23
申请号
GB19300004226
申请日期
1930.02.07
申请人
LESLIE HAMPTON ROBINSON
发明人
分类号
B63H16/08
主分类号
B63H16/08
代理机构
代理人
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地址
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