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发明名称
Improvements in or relating to pulse code modulation signalling systems
摘要
申请公布号
GB963831(A)
申请公布日期
1964.07.15
申请号
GB19590041757
申请日期
1959.12.08
申请人
BRITISH TELECOMMUNICATIONS RESEARCH LIMITED
发明人
DAVIS JOHN CHRISTOPHER HAMMOND
分类号
H04B14/04
主分类号
H04B14/04
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代理人
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