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经营范围
发明名称
Automatic Telecommunication Exchange
摘要
申请公布号
GB1155685(A)
申请公布日期
1969.06.18
申请号
GB19680011151
申请日期
1968.03.07
申请人
INTERNATIONAL STANDARD ELECTRIC CORPORATION
发明人
分类号
H04Q3/72;H04Q3/00
主分类号
H04Q3/72
代理机构
代理人
主权项
地址
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