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经营范围
发明名称
Pièces légères de charpente et de construction en béton ferré
摘要
申请公布号
FR869494(A)
申请公布日期
1942.02.03
申请号
FRD869494
申请日期
1941.01.24
申请人
发明人
LEFEBVRE CHARLES, AUGUSTE
分类号
E04B1/20
主分类号
E04B1/20
代理机构
代理人
主权项
地址
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