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发明名称
Automatic telephone exchange
摘要
申请公布号
US3317676(A)
申请公布日期
1967.05.02
申请号
US19630307945
申请日期
1963.09.10
申请人
INTERNATIONAL STANDARD ELECTRIC CORPORATION
发明人
EKBERGH OSCAR EVERT;JONSSON PER GUSTAF
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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