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发明名称
Telecommunication exchange
摘要
申请公布号
GB1128555(A)
申请公布日期
1968.09.25
申请号
GB19670023395
申请日期
1967.05.19
申请人
INTERNATIONAL STANDARD ELECTRIC CORPORATION
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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