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发明名称
摘要
申请公布号
JPS531091(B2)
申请公布日期
1978.01.14
申请号
JP19730026580
申请日期
1973.03.08
申请人
发明人
分类号
H01J31/20;H04N9/18;H04N9/28
主分类号
H01J31/20
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代理人
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