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发明名称
Heat recovery ring main for hot water and heating
摘要
申请公布号
GB0203819(D0)
申请公布日期
2002.04.03
申请号
GB20020003819
申请日期
2002.02.19
申请人
GRAHAM, RICHARD J
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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