An improved chimney cowl or ventilator,申请号GB19370015104-传众专利搜索

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发明名称	An improved chimney cowl or ventilator
摘要
申请公布号	GB476855(A)	申请公布日期	1937.12.16
申请号	GB19370015104	申请日期	1937.05.31
申请人	KENNETH HENRY BIRD	发明人
分类号	F23L17/08	主分类号	F23L17/08
代理机构		代理人
主权项
地址

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