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经营范围
发明名称
Gaseous tube
摘要
申请公布号
US2395145(A)
申请公布日期
1946.02.19
申请号
US19440533331
申请日期
1944.04.29
申请人
RANNEY PERCIVAL K
发明人
RANNEY PERCIVAL K.
分类号
H01J5/50
主分类号
H01J5/50
代理机构
代理人
主权项
地址
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