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发明名称
Inband signaling system
摘要
申请公布号
US2971062(A)
申请公布日期
1961.02.07
申请号
US19590814597
申请日期
1959.05.20
申请人
LENKURT ELECTRIC COMPANY, INC.
发明人
SALIHI JALAL T.
分类号
H04Q1/45
主分类号
H04Q1/45
代理机构
代理人
主权项
地址
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