Improvements in or relating to water heaters,申请号GB19590002661-传众专利搜索

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发明名称	Improvements in or relating to water heaters
摘要
申请公布号	GB944651(A)	申请公布日期	1963.12.18
申请号	GB19590002661	申请日期	1959.01.24
申请人	THOMAS BUTLER NELSON;ERNEST NELSON;HAROLD NELSON;FRANK NELSON	发明人
分类号	A47J31/54;F24D17/00	主分类号	A47J31/54
代理机构		代理人
主权项
地址

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