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经营范围
发明名称
CENTRAL HEATING BOILER
摘要
申请公布号
PL120575(B1)
申请公布日期
1982.03.31
申请号
PL19780209449
申请日期
1978.09.05
申请人
发明人
分类号
F24D;F24H1/32;(IPC1-7):F24H1/32
主分类号
F24D
代理机构
代理人
主权项
地址
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