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经营范围
发明名称
Roof ventilator
摘要
申请公布号
GB412791(A)
申请公布日期
1934.07.05
申请号
GB19330023823
申请日期
1933.08.28
申请人
ARTHUR SUTTON
发明人
分类号
F23L17/02
主分类号
F23L17/02
代理机构
代理人
主权项
地址
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