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经营范围
发明名称
A chimney construction
摘要
申请公布号
GB774122(A)
申请公布日期
1957.05.08
申请号
GB19540008818
申请日期
1954.03.25
申请人
E.M. VAN DE POL'S HANDELSONDERNEMING N.V.
发明人
HEKELAAR JOHANNES PETRUS
分类号
E04F17/02
主分类号
E04F17/02
代理机构
代理人
主权项
地址
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