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经营范围
发明名称
SMOKE TUBE BOILER IN PARTICULAR FOR CENTRAL HEATING
摘要
申请公布号
PL147089(B1)
申请公布日期
1989.04.29
申请号
PL19860261418
申请日期
1986.09.17
申请人
发明人
分类号
F24D;F24H1/36;(IPC1-7):F24H1/36
主分类号
F24D
代理机构
代理人
主权项
地址
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