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发明名称
Carrier telegraph system
摘要
申请公布号
US2657262(A)
申请公布日期
1953.10.27
申请号
US19510247065
申请日期
1951.09.18
申请人
INTERNATIONAL STANDARD ELECTRIC CORPORATION
发明人
PRIOR HECTOR THOMAS
分类号
H03K9/02;H04B3/14;H04L1/02;H04L27/06
主分类号
H03K9/02
代理机构
代理人
主权项
地址
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