Improvements in cathode ray tubes,申请号GB19380016609-传众专利搜索

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发明名称	Improvements in cathode ray tubes
摘要
申请公布号	GB516620(A)	申请公布日期	1940.01.08
申请号	GB19380016609	申请日期	1938.06.02
申请人	FRANCOIS JOSEPH GERARD VAN DEN BOSCH	发明人
分类号	H01J29/16;H01J29/48	主分类号	H01J29/16
代理机构		代理人
主权项
地址

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