Manufacture of electric tubes,申请号US19380234594-传众专利搜索

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发明名称	Manufacture of electric tubes
摘要
申请公布号	US2321224(A)	申请公布日期	1943.06.08
申请号	US19380234594	申请日期	1938.10.12
申请人	WESTINGHOUSE ELECTRIC & MANUFACTURING COMPANY	发明人	MADDEN HARRY D.;GREENBOWE JAMES W.
分类号	H01J9/32	主分类号	H01J9/32
代理机构		代理人
主权项
地址

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