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发明名称
Telegraph switching system
摘要
申请公布号
US2375794(A)
申请公布日期
1945.05.15
申请号
US19420434244
申请日期
1942.03.11
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
KINKEAD FULLERTON S.;LANG WILMARTH Y.
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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