Flat tubeless ionization conductor device,申请号US19290373858-传众专利搜索

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发明名称	Flat tubeless ionization conductor device
摘要
申请公布号	US1825399(A)	申请公布日期	1931.09.29
申请号	US19290373858	申请日期	1929.06.26
申请人	FRED HOTCHNER	发明人	HOTCHNER FRED
分类号	H01J61/30	主分类号	H01J61/30
代理机构		代理人
主权项
地址

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