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经营范围
发明名称
Improved hydrodynamic tachometer
摘要
申请公布号
GB521784(A)
申请公布日期
1940.05.30
申请号
GB19390007314
申请日期
1939.03.06
申请人
SCHNEIDER & CIE;JEAN FIEX
发明人
分类号
G01P3/28
主分类号
G01P3/28
代理机构
代理人
主权项
地址
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