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发明名称
Perfectionnements aux appareils de mesure de flux lumineux
摘要
申请公布号
FR1067056(A)
申请公布日期
1954.06.11
申请号
FRD1067056
申请日期
1952.11.22
申请人
COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL
发明人
分类号
G01J1/42
主分类号
G01J1/42
代理机构
代理人
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