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发明名称
Improvements in or relating to telephone systems employing crossbar switches
摘要
申请公布号
GB562115(A)
申请公布日期
1944.06.19
申请号
GB19430003717
申请日期
1943.03.08
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
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地址
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