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经营范围
发明名称
ELECTRON GUN FOR PICTURE TUBE
摘要
申请公布号
JPH04141934(A)
申请公布日期
1992.05.15
申请号
JP19900263902
申请日期
1990.10.03
申请人
HITACHI LTD
发明人
KUMADA SEIJI
分类号
H01J9/14;H01J29/48
主分类号
H01J9/14
代理机构
代理人
主权项
地址
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