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经营范围
发明名称
Dispositif de transmission de messages par fréquence porteuse, par des lignes, en particulier dispositif de radio-transmission par fil de plusieurs programmes
摘要
申请公布号
FR847560(A)
申请公布日期
1939.10.12
申请号
FRD847560
申请日期
1938.12.14
申请人
C. LORENZ AKTIENGESELLSCHAFT
发明人
分类号
H04H20/77;H04J1/00
主分类号
H04H20/77
代理机构
代理人
主权项
地址
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