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发明名称
Improvements in and relating to louvre ventilators
摘要
申请公布号
GB728140(A)
申请公布日期
1955.04.13
申请号
GB19520008313
申请日期
1952.04.01
申请人
H. W. COOPER AND COMPANY LIMITED
发明人
GARNER HENRY
分类号
E06B7/084
主分类号
E06B7/084
代理机构
代理人
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