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发明名称
Improvements in ventilators, applicable also to chimney pots
摘要
申请公布号
GB479696(A)
申请公布日期
1938.02.10
申请号
GB19360029655
申请日期
1936.10.31
申请人
HERBERT LODGE
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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