Electrode for vacuum tubes,申请号US19340740301-传众专利搜索

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发明名称	Electrode for vacuum tubes
摘要
申请公布号	US2161790(A)	申请公布日期	1939.06.13
申请号	US19340740301	申请日期	1934.08.17
申请人	LUMINELES	发明人	ABADIE JEAN BAPTISTE JOSEPH MARCEL
分类号	H01J1/142;H01J9/04	主分类号	H01J1/142
代理机构		代理人
主权项
地址

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