Heating of Electron Tube Cathodes,申请号GB19670040477-传众专利搜索

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发明名称	Heating of Electron Tube Cathodes
摘要
申请公布号	GB1166547(A)	申请公布日期	1969.10.08
申请号	GB19670040477	申请日期	1967.09.05
申请人	PICKER CORPORATION	发明人
分类号	H01J35/22	主分类号	H01J35/22
代理机构		代理人
主权项
地址

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