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发明名称
摘要
申请公布号	SU364987(A1)	申请公布日期	1972.12.28
申请号	SU19711632677	申请日期	1971.03.15
申请人		发明人
分类号	H01J61/40;(IPC1-7):H01J61/40	主分类号	H01J61/40
代理机构		代理人
主权项
地址

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