Electric discharge device,申请号US19310521958-传众专利搜索

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发明名称	Electric discharge device
摘要
申请公布号	US1969496(A)	申请公布日期	1934.08.07
申请号	US19310521958	申请日期	1931.03.12
申请人	BELL TELEPHONE LABORATORIES, INCORPORATED	发明人	BEARDOW GEORGE M.
分类号	H01J17/06	主分类号	H01J17/06
代理机构		代理人
主权项
地址

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