Control of space discharge apparatus,申请号US19380240691-传众专利搜索

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发明名称	Control of space discharge apparatus
摘要
申请公布号	US2236661(A)	申请公布日期	1941.04.01
申请号	US19380240691	申请日期	1938.11.16
申请人	BELL TELEPHONE LABORATORIES, INCORPORATED	发明人	WILSON IRA G.
分类号	H01J21/18;H03C1/32	主分类号	H01J21/18
代理机构		代理人
主权项
地址

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