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发明名称
Telecommunication Exchange
摘要
申请公布号
GB1184310(A)
申请公布日期
1970.03.11
申请号
GB19680043145
申请日期
1968.09.11
申请人
INTERNATIONAL STANDARD ELECTRIC CORPORATION
发明人
分类号
H04Q3/54
主分类号
H04Q3/54
代理机构
代理人
主权项
地址
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