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发明名称
摘要
申请公布号
JPS5535823(B2)
申请公布日期
1980.09.17
申请号
JP19750034883
申请日期
1975.03.25
申请人
发明人
分类号
H01J31/15;H01J31/10
主分类号
H01J31/15
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代理人
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