Improvements in boiler dampers,申请号GB19470022386-传众专利搜索

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发明名称	Improvements in boiler dampers
摘要
申请公布号	GB625631(A)	申请公布日期	1949.06.30
申请号	GB19470022386	申请日期	1947.08.12
申请人	ANDREW CAMPBELL	发明人
分类号	F22B7/00;F22B9/12	主分类号	F22B7/00
代理机构		代理人
主权项
地址

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