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经营范围
发明名称
Improvements in or relating to ventilators for flat roofs
摘要
申请公布号
GB1100776(A)
申请公布日期
1968.01.24
申请号
GB19660043918
申请日期
1966.09.30
申请人
MANFRED SCHIERLING
发明人
分类号
F24F7/02
主分类号
F24F7/02
代理机构
代理人
主权项
地址
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