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发明名称
Improvements in or relating to telegraph systems
摘要
申请公布号
GB1020976(A)
申请公布日期
1966.02.23
申请号
GB19640049834
申请日期
1964.12.08
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
发明人
分类号
H04L5/14;H04L12/00
主分类号
H04L5/14
代理机构
代理人
主权项
地址
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