SHIELDING MASK FOR LINEAR ELECTRON BEAM,申请号JP19890292760-传众专利搜索

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发明名称	SHIELDING MASK FOR LINEAR ELECTRON BEAM
摘要
申请公布号	JPH03152847(A)	申请公布日期	1991.06.28
申请号	JP19890292760	申请日期	1989.11.09
申请人	NEC CORP	发明人	NAMITA HIROMITSU;NAKAMURA TSUYOSHI
分类号	H01J37/30;H01L21/027;H01L21/263	主分类号	H01J37/30
代理机构		代理人
主权项
地址

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