Improvements in or relating to gas-fired water heaters,申请号GB19380031754-传众专利搜索

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发明名称	Improvements in or relating to gas-fired water heaters
摘要
申请公布号	GB520866(A)	申请公布日期	1940.05.06
申请号	GB19380031754	申请日期	1938.11.02
申请人	JOHN HENRY EWART;EWART & SON LIMITED	发明人
分类号	F24H9/18	主分类号	F24H9/18
代理机构		代理人
主权项
地址

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