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发明名称
Dispositif pour mesurer des vitesses d'écoulement et des vitesses de bateaux
摘要
申请公布号
FR697743(A)
申请公布日期
1931.01.21
申请号
FRD697743
申请日期
1930.06.21
申请人
GESELLSCHAFT FUR ELEKTRISCHE APPARATE M. B. H.
发明人
分类号
G01P5/17
主分类号
G01P5/17
代理机构
代理人
主权项
地址
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