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发明名称
Système de transmission d'ondes électriques
摘要
申请公布号
FR854383(A)
申请公布日期
1940.04.11
申请号
FRD854383
申请日期
1938.12.30
申请人
LE MATERIEL TELEPHONIQUE SOCIETE ANONYME
发明人
分类号
H04N5/08
主分类号
H04N5/08
代理机构
代理人
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地址
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