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发明名称
High-frequency signaling system
摘要
申请公布号
US1771376(A)
申请公布日期
1930.07.22
申请号
US19270179962
申请日期
1927.03.31
申请人
GENERAL ELECTRIC COMPANY
发明人
BYRNES IRVING F.
分类号
H04L27/04
主分类号
H04L27/04
代理机构
代理人
主权项
地址
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