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发明名称
Improvements in or relating to electric discharge tubes
摘要
申请公布号
GB618284(A)
申请公布日期
1949.02.18
申请号
GB19460030171
申请日期
1946.10.09
申请人
PHILIPS LAMPS LIMITED
发明人
分类号
H01J5/50;H01J19/66
主分类号
H01J5/50
代理机构
代理人
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