Electronic tube with evaporation-proof cathode and electromagnetic electrostatic andheated grids controls,申请号US19660570609-传众专利搜索

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发明名称	Electronic tube with evaporation-proof cathode and electromagnetic electrostatic andheated grids controls
摘要
申请公布号	US3396302(A)	申请公布日期	1968.08.06
申请号	US19660570609	申请日期	1966.08.05
申请人	HENRY GREBER	发明人	GREBER HENRY
分类号	H01J1/15;H01J19/36;H01J19/38;H01J21/02;H01J61/067	主分类号	H01J1/15
代理机构		代理人
主权项
地址

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