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经营范围
发明名称
Improvements in or relating to radio frequency circuits
摘要
申请公布号
GB657555(A)
申请公布日期
1951.09.19
申请号
GB19480005945
申请日期
1948.02.27
申请人
THE DIRECTOR OF TECHNICAL SERVICES OF THE DEPARTMENT OF COMMERCE
发明人
分类号
H01P5/10
主分类号
H01P5/10
代理机构
代理人
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地址
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