Improvements relating to apparatus for protecting the phosphor screen of a cathode-ray tube,申请号GB19550013012-传众专利搜索

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发明名称	Improvements relating to apparatus for protecting the phosphor screen of a cathode-ray tube
摘要
申请公布号	GB802982(A)	申请公布日期	1958.10.15
申请号	GB19550013012	申请日期	1955.05.05
申请人	FERRANTI LIMITED	发明人	VAUGHAN-JONES IAN NORMAN;WELLS ROY KENNETH
分类号	H04N3/20	主分类号	H04N3/20
代理机构		代理人
主权项
地址

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