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发明名称
élément préfabriqué pour aération et ventilation
摘要
申请公布号
FR1255565(A)
申请公布日期
1961.03.10
申请号
FR19606401528
申请日期
1960.03.09
申请人
发明人
HENAULT MAURICE
分类号
F24F7/00
主分类号
F24F7/00
代理机构
代理人
主权项
地址
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