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发明名称
摘要
申请公布号
JPS57195829(U)
申请公布日期
1982.12.11
申请号
JP19810082593U
申请日期
1981.06.04
申请人
发明人
分类号
H01J37/20;H01J37/02;H01L21/027;H01L21/30;(IPC1-7):H01L21/30
主分类号
H01J37/20
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