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发明名称
Improvements in or relating to data signal transmission systems
摘要
申请公布号
GB1069955(A)
申请公布日期
1967.05.24
申请号
GB19640030623
申请日期
1964.08.04
申请人
TELEFUNKEN PATENTVERWERTUNGSGESELLSCHAFT M.B.H.
发明人
分类号
H04L7/06
主分类号
H04L7/06
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