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经营范围
发明名称
Ondemètre hétérodyne
摘要
申请公布号
FR841392(A)
申请公布日期
1939.05.17
申请号
FRD841392
申请日期
1938.01.22
申请人
发明人
FRANCOIS FROMY EMILE MARIE
分类号
H03B5/10
主分类号
H03B5/10
代理机构
代理人
主权项
地址
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