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发明名称
Vorrichtung zur Verminderung des Sogs bei Schiffen
摘要
申请公布号
DE519505(C)
申请公布日期
1931.02.28
申请号
DED519505D
申请日期
1930.01.14
申请人
MAX WERTEFRONGEL
发明人
分类号
B63B1/34
主分类号
B63B1/34
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代理人
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