Stem for electron discharge devices,申请号US19360066231-传众专利搜索

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发明名称	Stem for electron discharge devices
摘要
申请公布号	US2066856(A)	申请公布日期	1937.01.05
申请号	US19360066231	申请日期	1936.02.28
申请人	RADIO CORPORATION	发明人	JR. GEORGE M. ROSE,
分类号	H01J5/32	主分类号	H01J5/32
代理机构		代理人
主权项
地址

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