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经营范围
发明名称
Improvements in or relating to automatic telecommunication exchanges
摘要
申请公布号
GB794812(A)
申请公布日期
1958.05.14
申请号
GB19540028635
申请日期
1954.10.05
申请人
STANDARD TELEPHONES AND CABLES LIMITED
发明人
BRAY FREDERICK HARRY;KNIGHT RONALD GEORGE
分类号
H04Q3/52
主分类号
H04Q3/52
代理机构
代理人
主权项
地址
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