Cathode-ray tube focusing circuit,申请号US19470721553-传众专利搜索

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发明名称	Cathode-ray tube focusing circuit
摘要
申请公布号	US2458891(A)	申请公布日期	1949.01.11
申请号	US19470721553	申请日期	1947.01.11
申请人	PHILIPS LABORATORIES, INC.	发明人	BOYLE HOMER G.
分类号	H04N3/26	主分类号	H04N3/26
代理机构		代理人
主权项
地址

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