Improvements in or relating to cooling-devices,申请号GB19470001758-传众专利搜索

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发明名称	Improvements in or relating to cooling-devices
摘要
申请公布号	GB652358(A)	申请公布日期	1951.04.25
申请号	GB19470001758	申请日期	1947.01.20
申请人	PHILIPS LAMPS LIMITED	发明人
分类号	H01J19/36	主分类号	H01J19/36
代理机构		代理人
主权项
地址

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