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发明名称
Improvements in or relating to electron discharge valves
摘要
申请公布号
GB810321(A)
申请公布日期
1959.03.11
申请号
GB19560015401
申请日期
1956.05.17
申请人
EGYESULT IZZOLAMPA ES VILLAMOSSAGI RESZVENYTARSASAG
发明人
分类号
H01J21/06;H03F1/10
主分类号
H01J21/06
代理机构
代理人
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