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发明名称
Systèmes de transmission à ondes porteuses modulées
摘要
申请公布号
FR869046(A)
申请公布日期
1942.01.22
申请号
FRD869046
申请日期
1941.01.07
申请人
LE MATERIEL TELEPHONIQUE
发明人
分类号
H03D7/02
主分类号
H03D7/02
代理机构
代理人
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地址
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