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经营范围
发明名称
Improvements in or relating to gas or vapour filled electric discharge devices
摘要
申请公布号
GB431889(A)
申请公布日期
1935.07.17
申请号
GB19340011579
申请日期
1934.04.17
申请人
TELEFUNKEN GESELLSCHAFT FUR DRAHTLOSE TELEGRAPHIE M.B.H.
发明人
分类号
H01J17/04
主分类号
H01J17/04
代理机构
代理人
主权项
地址
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