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发明名称
摘要
申请公布号	JP2594287(B2)	申请公布日期	1997.03.26
申请号	JP19870220748	申请日期	1987.09.03
申请人		发明人
分类号	H01J9/20;H01J9/22;(IPC1-7):H01J9/20	主分类号	H01J9/20
代理机构		代理人
主权项
地址

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