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经营范围
发明名称
Improvements to air actuated ventilators, chimney tops, and the like
摘要
申请公布号
GB374703(A)
申请公布日期
1932.06.16
申请号
GB19310028953
申请日期
1931.08.26
申请人
JOHN ALEXANDER EDMOND
发明人
分类号
F23L17/10
主分类号
F23L17/10
代理机构
代理人
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