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经营范围
发明名称
Improvements in or relating to electrical space discharge tubes
摘要
申请公布号
GB607058(A)
申请公布日期
1948.08.25
申请号
GB19460002359
申请日期
1946.01.24
申请人
RAYTHEON MANUFACTURING COMPANY
发明人
分类号
H01J19/42
主分类号
H01J19/42
代理机构
代理人
主权项
地址
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