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经营范围
发明名称
Electronic branching circuit
摘要
申请公布号
US3258536(A)
申请公布日期
1966.06.28
申请号
US19610132186
申请日期
1961.08.17
申请人
AUTOMATIC ELECTRIC LABORATORIES, INC.
发明人
LUGTEN LEONARDUS K.
分类号
H04B1/58;H04M9/02
主分类号
H04B1/58
代理机构
代理人
主权项
地址
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