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经营范围
发明名称
DC SIGNAL RECEIVING CIRCUITS
摘要
申请公布号
GB1482798(A)
申请公布日期
1977.08.17
申请号
GB19740050208
申请日期
1974.11.20
申请人
SIEMENS AG
发明人
分类号
H03H7/01;G01R29/027;H03K5/1254;H03K5/14;H04B3/04;H04L25/03;H04L25/08;H04Q1/36
主分类号
H03H7/01
代理机构
代理人
主权项
地址
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