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经营范围
发明名称
Improvements in or relating to electromagnetic radiators or receivers
摘要
申请公布号
GB582856(A)
申请公布日期
1946.11.29
申请号
GB19440012864
申请日期
1944.07.05
申请人
JOHN BETTELEY BIRKS
发明人
分类号
H01P1/17
主分类号
H01P1/17
代理机构
代理人
主权项
地址
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