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发明名称
摘要
申请公布号
JPS5419658(U)
申请公布日期
1979.02.08
申请号
JP19770091918U
申请日期
1977.07.11
申请人
发明人
分类号
H01J37/244;G01T1/20;H01J37/26;H01L31/09
主分类号
H01J37/244
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代理人
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