ELECTRON GUN OF MICROWAVE TUBE,申请号JP19890016732-传众专利搜索

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发明名称	ELECTRON GUN OF MICROWAVE TUBE
摘要
申请公布号	JPH02197046(A)	申请公布日期	1990.08.03
申请号	JP19890016732	申请日期	1989.01.25
申请人	NEC CORP	发明人	TAKAHASHI MASAAKI
分类号	H01J23/06	主分类号	H01J23/06
代理机构		代理人
主权项
地址

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