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发明名称
Câble téléphonique fonctionnant avec des amplificateurs
摘要
申请公布号
FR45556(E)
申请公布日期
1935.10.17
申请号
FRD45556
申请日期
1934.11.09
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
发明人
分类号
H01B11/00
主分类号
H01B11/00
代理机构
代理人
主权项
地址
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