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经营范围
发明名称
Improvements relating to synchronous detectors for electrical signalling
摘要
申请公布号
GB804871(A)
申请公布日期
1958.11.26
申请号
GB19570004750
申请日期
1957.02.12
申请人
ADMIRAL CORPORATION
发明人
分类号
H03D1/22
主分类号
H03D1/22
代理机构
代理人
主权项
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