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发明名称
Automatic telecommunication exchanges
摘要
申请公布号
US2872527(A)
申请公布日期
1959.02.03
申请号
US19550536963
申请日期
1955.09.27
申请人
INTERNATIONAL STANDARD ELECTRIC CORPORATION
发明人
BRAY FREDERICK HARRY;KNIGHT RONALD GEORGE
分类号
H04Q3/52
主分类号
H04Q3/52
代理机构
代理人
主权项
地址
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