Improvements in or relating to electric water heaters,申请号GB19390001066-传众专利搜索

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发明名称	Improvements in or relating to electric water heaters
摘要
申请公布号	GB513820(A)	申请公布日期	1939.10.23
申请号	GB19390001066	申请日期	1939.01.12
申请人	JOHN HENRY EWART	发明人
分类号	F24H1/20	主分类号	F24H1/20
代理机构		代理人
主权项
地址

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