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发明名称
Système de transmission pour les transmissions à courants alternatifs porteurs multiples
摘要
申请公布号
FR772256(A)
申请公布日期
1934.10.26
申请号
FRD772256
申请日期
1934.04.24
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
发明人
分类号
H04J1/12
主分类号
H04J1/12
代理机构
代理人
主权项
地址
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