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发明名称
Improvements in or relating to electrical signalling systems
摘要
申请公布号
GB1030990(A)
申请公布日期
1966.05.25
申请号
GB19650028039
申请日期
1962.05.16
申请人
BRITISH TELECOMMUNICATIONS RESEARCH LIMITED
发明人
DAVIS JOHN CHRISTOPHER HAMMOND
分类号
G11C11/403;H03M1/00
主分类号
G11C11/403
代理机构
代理人
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