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发明名称
Übertragungssystem mit Verstärkern und Rückkopplungssperrern.
摘要
申请公布号
AT115966(B)
申请公布日期
1930.01.25
申请号
ATD115966
申请日期
1927.11.16
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
发明人
KARL KUEPFMUELLER
分类号
H04B3/04;H04B3/21
主分类号
H04B3/04
代理机构
代理人
主权项
地址
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