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发明名称
Improvements in or relating to communication systems
摘要
申请公布号
GB940484(A)
申请公布日期
1963.10.30
申请号
GB19610009345
申请日期
1961.03.14
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
发明人
分类号
H04L1/00
主分类号
H04L1/00
代理机构
代理人
主权项
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