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经营范围
发明名称
LINE DETECTOR CIRCUIT
摘要
申请公布号
US3509283(A)
申请公布日期
1970.04.28
申请号
USD3509283
申请日期
1965.12.27
申请人
NORTHERN ELECTRIC CO. LTD.
发明人
PIERRE A. DESCHENES;GUNARS BALGALVIS;WILLIAM N. REGAN
分类号
H04Q3/00;(IPC1-7):H04Q3/72
主分类号
H04Q3/00
代理机构
代理人
主权项
地址
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