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发明名称
Telegraph switching system
摘要
申请公布号
US2976347(A)
申请公布日期
1961.03.21
申请号
US19570634973
申请日期
1957.01.18
申请人
GENERAL DYNAMICS CORPORATION
发明人
JR. CHARLES R. FISHER,;MORRIS FRANK A.
分类号
H04L12/54;H04L13/08
主分类号
H04L12/54
代理机构
代理人
主权项
地址
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