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经营范围
发明名称
Perfectionnements aux hélices et aux navires
摘要
申请公布号
FR776656(A)
申请公布日期
1935.01.31
申请号
FRD776656
申请日期
1933.10.20
申请人
发明人
HENRY EDMOND GUSTAVE
分类号
B63H1/28
主分类号
B63H1/28
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代理人
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