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发明名称
Improvements relating to revolving cowls for chimneys
摘要
申请公布号
GB396012(A)
申请公布日期
1933.07.27
申请号
GB19330012523
申请日期
1933.04.29
申请人
THOMAS BLACK, JUNIOR
发明人
分类号
F23L17/10
主分类号
F23L17/10
代理机构
代理人
主权项
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