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发明名称
Improvements in or relating to electric discharge tubes
摘要
申请公布号
GB909917(A)
申请公布日期
1962.11.07
申请号
GB19580042061
申请日期
1958.12.30
申请人
PHILIPS ELECTRICAL INDUSTRIES LIMITED
发明人
分类号
H01J19/40;H01J21/02
主分类号
H01J19/40
代理机构
代理人
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地址
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