Improvements in or relating to ion traps in cathode-ray tubes,申请号GB19540034811-传众专利搜索

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发明名称	Improvements in or relating to ion traps in cathode-ray tubes
摘要
申请公布号	GB780040(A)	申请公布日期	1957.07.31
申请号	GB19540034811	申请日期	1954.12.01
申请人	PHILIPS ELECTRICAL INDUSTRIES LIMITED	发明人
分类号	H01J29/84	主分类号	H01J29/84
代理机构		代理人
主权项
地址

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