Vacuum tube apparatus,申请号US19390260884-传众专利搜索

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发明名称	Vacuum tube apparatus
摘要
申请公布号	US2315280(A)	申请公布日期	1943.03.30
申请号	US19390260884	申请日期	1939.03.10
申请人	MACHLETT LABORATORIES INCORPORATED	发明人	SKEHAN JOSEPH W.;AGULE GEORGE J.
分类号	H01J35/10	主分类号	H01J35/10
代理机构		代理人
主权项
地址

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