Improvements in chimney cowls,申请号GB19470033185-传众专利搜索

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发明名称	Improvements in chimney cowls
摘要
申请公布号	GB629931(A)	申请公布日期	1949.09.30
申请号	GB19470033185	申请日期	1947.12.16
申请人	IGNATIUS JOHN O'HEA	发明人
分类号	F23L17/02	主分类号	F23L17/02
代理机构		代理人
主权项
地址

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