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发明名称
Poteaux en béton armé précontraint et procédé pour leur obtention
摘要
申请公布号
FR988961(A)
申请公布日期
1951.09.03
申请号
FRD988961
申请日期
1948.07.06
申请人
发明人
GUERRIER HENRI-AUGUSTE
分类号
B28B23/06
主分类号
B28B23/06
代理机构
代理人
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