Improvements in or relating to electron discharge apparatus,申请号GB19440012592-传众专利搜索

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发明名称	Improvements in or relating to electron discharge apparatus
摘要
申请公布号	GB605257(A)	申请公布日期	1948.07.20
申请号	GB19440012592	申请日期	1944.07.01
申请人	SPERRY GYROSCOPE COMPANY INC.	发明人
分类号	H01J25/12	主分类号	H01J25/12
代理机构		代理人
主权项
地址

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