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发明名称
Dispositif pour déceler l'existence de potentiels électriques
摘要
申请公布号
FR58660(E)
申请公布日期
1954.03.02
申请号
FRD58660
申请日期
1947.12.30
申请人
LE MATERIEL TELEPHONIQUE
发明人
HERTOG MARTINUS DEN
分类号
H03C1/58;H04Q1/38
主分类号
H03C1/58
代理机构
代理人
主权项
地址
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