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发明名称
Magnetron
摘要
申请公布号
US2199177(A)
申请公布日期
1940.04.30
申请号
US19390250877
申请日期
1939.01.14
申请人
TELEFUNKEN GESELLSCHAFT FUR DRAHTLOSE TELEGRAPHIE M. B. H.
发明人
HOLLMANN HANS ERICH
分类号
H01J25/52
主分类号
H01J25/52
代理机构
代理人
主权项
地址
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