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发明名称
Improvements in or relating to communication systems
摘要
申请公布号
GB932830(A)
申请公布日期
1963.07.31
申请号
GB19610031519
申请日期
1961.09.01
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
发明人
分类号
H04L1/12
主分类号
H04L1/12
代理机构
代理人
主权项
地址
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