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发明名称
Improvements in or relating to louvre ventilators
摘要
申请公布号
GB336432(A)
申请公布日期
1930.10.16
申请号
GB19290031205
申请日期
1929.10.15
申请人
ERNEST PARRAMORE
发明人
分类号
F24F13/08
主分类号
F24F13/08
代理机构
代理人
主权项
地址
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