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经营范围
发明名称
Improvements in central heating and hot water supply systems
摘要
申请公布号
GB606999(A)
申请公布日期
1948.08.24
申请号
GB19460002210
申请日期
1946.01.23
申请人
GEORGE BUTLER
发明人
分类号
F24D3/08
主分类号
F24D3/08
代理机构
代理人
主权项
地址
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