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发明名称
COMMUNICATIONS TRANSMISSION LINKS INCLUDING INTERMEDIATE AMPLIFIERS
摘要
申请公布号
GB1575346(A)
申请公布日期
1980.09.17
申请号
GB19770021990
申请日期
1977.05.25
申请人
SIEMENS AG
发明人
分类号
H04B3/36;H04B3/44;(IPC1-7):H04B3/36
主分类号
H04B3/36
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代理人
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