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经营范围
发明名称
A smoke barrier
摘要
申请公布号
GB2272836(A)
申请公布日期
1994.06.01
申请号
GB19920015687
申请日期
1992.07.23
申请人
* ENVIRONMENTAL SEALS LIMITED
发明人
DEREK ALFRED * WARD
分类号
A62C2/18;A62C2/24;F24F13/06;(IPC1-7):A62C2/06
主分类号
A62C2/18
代理机构
代理人
主权项
地址
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