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经营范围
发明名称
Radier à poutres creuses et procédé pour sa construction
摘要
申请公布号
FR721544(A)
申请公布日期
1932.03.04
申请号
FRD721544
申请日期
1931.08.01
申请人
发明人
ARX CASIMIR VON
分类号
E04C3/20
主分类号
E04C3/20
代理机构
代理人
主权项
地址
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