Electron discharge device and elements thereof,申请号US19420453214-传众专利搜索

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发明名称	Electron discharge device and elements thereof
摘要
申请公布号	US2361719(A)	申请公布日期	1944.10.31
申请号	US19420453214	申请日期	1942.08.01
申请人	BELL TELEPHONE LABORATORIES, INCORPORATED	发明人	TEAL GORDON K.
分类号	H01J29/41	主分类号	H01J29/41
代理机构		代理人
主权项
地址

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