Improvements in or relating to cathode ray tubes,申请号GB19290017966-传众专利搜索

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发明名称	Improvements in or relating to cathode ray tubes
摘要
申请公布号	GB313882(A)	申请公布日期	1930.09.11
申请号	GB19290017966	申请日期	1929.06.11
申请人	ASSOCIATED TELEPHONE & TELEGRAPH COMPANY	发明人
分类号	H03B13/00	主分类号	H03B13/00
代理机构		代理人
主权项
地址

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