PERMANENT MAGNET FOR ELECTRON LENS,申请号JP19890263447-传众专利搜索

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发明名称	PERMANENT MAGNET FOR ELECTRON LENS
摘要
申请公布号	JPH03127433(A)	申请公布日期	1991.05.30
申请号	JP19890263447	申请日期	1989.10.09
申请人	KANTO DENSHI KOGYO KK	发明人	NISHINUMA TERUMI;IDA TSUGIO;ONODERA TOSHIHIRO
分类号	H01J29/66	主分类号	H01J29/66
代理机构		代理人
主权项
地址

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