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经营范围
发明名称
ELECTRON GUN
摘要
申请公布号
GB1572249(A)
申请公布日期
1980.07.30
申请号
GB19760050374
申请日期
1976.12.02
申请人
NIHON DENSHI KK
发明人
分类号
H01J1/18;H01J1/13;H01J3/02;H01J29/04;H01J29/48;(IPC1-7):H01J3/02
主分类号
H01J1/18
代理机构
代理人
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地址
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