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经营范围
发明名称
Dispositif de modulateur
摘要
申请公布号
FR886262(A)
申请公布日期
1943.10.11
申请号
FRD886262
申请日期
1942.09.29
申请人
LIGNES TELEGRAPHIQUES ET TELEPHONIQUES
发明人
分类号
H03C1/58
主分类号
H03C1/58
代理机构
代理人
主权项
地址
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