Improvements relating to chimney cowls,申请号GB19540030821-传众专利搜索

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发明名称	Improvements relating to chimney cowls
摘要
申请公布号	GB784789(A)	申请公布日期	1957.10.16
申请号	GB19540030821	申请日期	1954.10.26
申请人	FREDERIC NORMAN HOULDSWORTH	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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