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发明名称
Improvements in or relating to telephone or like systems
摘要
申请公布号
GB561098(A)
申请公布日期
1944.05.04
申请号
GB19430002207
申请日期
1943.02.10
申请人
AUTOMATIC TELEPHONE & ELECTRIC COMPANY LIMITED;CHARLES GILLINGS;LAWRENCE JOHN MURRAY
发明人
分类号
H04Q3/00
主分类号
H04Q3/00
代理机构
代理人
主权项
地址
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