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发明名称
A new or improved apparatus for controlling the draught produced by the chimneys or flues of boilers, stoves, furnaces and the like
摘要
申请公布号
GB864111(A)
申请公布日期
1961.03.29
申请号
GB19560007530
申请日期
1956.03.09
申请人
ALFRED JOSEPH LANGHAM
发明人
分类号
F23L17/00
主分类号
F23L17/00
代理机构
代理人
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