Improvements in or relating to electron-optical systems,申请号GB19380015324-传众专利搜索

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发明名称	Improvements in or relating to electron-optical systems
摘要
申请公布号	GB488920(A)	申请公布日期	1938.06.30
申请号	GB19380015324	申请日期	1936.11.30
申请人	MARCONI'S WIRELESS TELEGRAPH COMPANY LIMITED	发明人
分类号	H01J31/28;H01J31/50	主分类号	H01J31/28
代理机构		代理人
主权项
地址

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