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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
GB469584(A)
申请公布日期
1937.07.28
申请号
GB19360031804
申请日期
1936.11.20
申请人
STANDARD TELEPHONES AND CABLES LIMITED
发明人
分类号
H01J19/34
主分类号
H01J19/34
代理机构
代理人
主权项
地址
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