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经营范围
发明名称
Improvements in or relating to rectifying valves and circuits
摘要
申请公布号
GB451542(A)
申请公布日期
1936.08.07
申请号
GB19350024472
申请日期
1935.09.02
申请人
N.V. PHILIPS GLOEILAMPENFABRIEKEN
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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