GAS FIRED WATER-TUBE BOILER FOR CENTRAL HEATING SYSTEMS,申请号PL19850254834-传众专利搜索

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发明名称	GAS FIRED WATER-TUBE BOILER FOR CENTRAL HEATING SYSTEMS
摘要
申请公布号	PL149189(B1)	申请公布日期	1990.01.31
申请号	PL19850254834	申请日期	1985.08.01
申请人		发明人
分类号	F22B;F24H1/44;F24H9/18;(IPC1-7):F24H1/44	主分类号	F22B
代理机构		代理人
主权项
地址

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