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经营范围
发明名称
Improvements in or relating to electric discharge tubes
摘要
申请公布号
GB1148974(A)
申请公布日期
1969.04.16
申请号
GB19670013974
申请日期
1967.03.28
申请人
PHILIPS ELECTRONIC AND ASSOCIATED INDUSTRIES LIMITED
发明人
分类号
H01J7/18
主分类号
H01J7/18
代理机构
代理人
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