Permanent magnet lens and lens system,申请号US19550509958-传众专利搜索

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法人/股东/高管

发明名称	Permanent magnet lens and lens system
摘要
申请公布号	US2858443(A)	申请公布日期	1958.10.28
申请号	US19550509958	申请日期	1955.05.20
申请人	HITACHI LIMITED	发明人	KIMURA HIROICHI;MORITO NOZOMU
分类号	H01J37/143	主分类号	H01J37/143
代理机构		代理人
主权项
地址

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