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经营范围
发明名称
COMMUNICATION SWITCHING SYSTEM
摘要
申请公布号
CA833176(A)
申请公布日期
1970.01.27
申请号
CAD833176
申请日期
申请人
AUTOMATIC ELECTRIC LABORATORIES
发明人
ROBERT W. DUTHIE;ROBERT M. THOMAS
分类号
主分类号
代理机构
代理人
主权项
地址
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