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发明名称
ROOF SPACE VENTILATOR
摘要
申请公布号
GB2193515(B)
申请公布日期
1990.04.11
申请号
GB19860019482
申请日期
1986.08.09
申请人
KENNETH DOUGLAS * JAMES
发明人
KENNETH DOUGLAS * JAMES
分类号
E04D13/17
主分类号
E04D13/17
代理机构
代理人
主权项
地址
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