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经营范围
发明名称
Circuits télégraphiques et analogues
摘要
申请公布号
FR854342(A)
申请公布日期
1940.04.11
申请号
FRD854342
申请日期
1939.05.05
申请人
LE MATERIEL TELEPHONIQUE
发明人
分类号
H04L12/06
主分类号
H04L12/06
代理机构
代理人
主权项
地址
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