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发明名称
TELEPHONE SYSTEMS EMPLOYING NON-NUMERICAL SWITCHES
摘要
申请公布号
CA514094(A)
申请公布日期
1955.06.28
申请号
CAD514094
申请日期
申请人
AUTOMATIC ELECTRIC LABORATORIES
发明人
ROY W. JONES
分类号
主分类号
代理机构
代理人
主权项
地址
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