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发明名称
CONSTITUENT FOR ELECTRON GUN
摘要
申请公布号
JPS54133070(A)
申请公布日期
1979.10.16
申请号
JP19780040303
申请日期
1978.04.07
申请人
HITACHI LTD
发明人
YAMAUCHI MASAAKI
分类号
H01J3/02;H01J29/48;H01J29/50;H01J29/56
主分类号
H01J3/02
代理机构
代理人
主权项
地址
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