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发明名称
Perfectionnements aux appareils de mesure d'affaiblissement
摘要
申请公布号
FR1045386(A)
申请公布日期
1953.11.25
申请号
FRD1045386
申请日期
1951.11.22
申请人
LIGNES TELEGRAPHIQUES ET TELEPHONIQUES
发明人
DALLEMAGNE ROBERT
分类号
G01R27/32
主分类号
G01R27/32
代理机构
代理人
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