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经营范围
发明名称
Improvements in or relating to electric discharge devices
摘要
申请公布号
GB726223(A)
申请公布日期
1955.03.16
申请号
GB19530004756
申请日期
1953.02.20
申请人
TELEFUNKEN GESELLSCHAFT FOER DRAHTLOSE TELEGRAPHIE, M.B.H.
发明人
分类号
H01J19/30
主分类号
H01J19/30
代理机构
代理人
主权项
地址
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