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发明名称
Station selector system
摘要
申请公布号
US2184387(A)
申请公布日期
1939.12.26
申请号
US19350055724
申请日期
1935.12.23
申请人
KELLOGG SWITCHBOARD AND SUPPLY COMPANY
发明人
KINER GLENN
分类号
H04L12/40
主分类号
H04L12/40
代理机构
代理人
主权项
地址
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