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发明名称
PROFILE EN ACIER LAMINE
摘要
申请公布号
BE818758(A1)
申请公布日期
1974.12.02
申请号
BE19740147529
申请日期
1974.08.12
申请人
发明人
分类号
E04C3/04;E04C3/06;E04C3/08;E04C3/32;(IPC1-7):F16S/
主分类号
E04C3/04
代理机构
代理人
主权项
地址
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