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经营范围
发明名称
Perfectionnements aux appareils de mesure
摘要
申请公布号
FR774888(A)
申请公布日期
1934.12.15
申请号
FRD774888
申请日期
1934.06.23
申请人
COMPAGNIE FRANCAISE POUR L'EXPLOITATION DES PROCEDES THOMSON-HOUSTON
发明人
分类号
G01P3/495
主分类号
G01P3/495
代理机构
代理人
主权项
地址
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