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经营范围
发明名称
SWITCHING CIRCUIT
摘要
申请公布号
GB2014816(A)
申请公布日期
1979.08.30
申请号
GB19790005941
申请日期
1979.02.20
申请人
DATA 100 CORP
发明人
分类号
H04B1/74;H01H47/20;H03K17/00;H04L25/02;H04N7/10;(IPC1-7):H03K17/00
主分类号
H04B1/74
代理机构
代理人
主权项
地址
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