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发明名称
Telegraph system
摘要
申请公布号
US2403441(A)
申请公布日期
1946.07.09
申请号
US19420456149
申请日期
1942.08.26
申请人
RITA SMITH KINKEAD;BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
分类号
H04L13/06
主分类号
H04L13/06
代理机构
代理人
主权项
地址
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