Improvements relating to electron discharge devices such as television transmission tubes,申请号GB19480033562-传众专利搜索

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发明名称	Improvements relating to electron discharge devices such as television transmission tubes
摘要
申请公布号	GB665279(A)	申请公布日期	1952.01.23
申请号	GB19480033562	申请日期	1948.12.31
申请人	ELECTRIC & MUSICAL INDUSTRIES LIMITED	发明人	CASSMAN HARRY
分类号	H01J29/43	主分类号	H01J29/43
代理机构		代理人
主权项
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