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发明名称
Corps creux pour former des poutrelles ou parties de poutrelles comportant essentiellement des rainures à ouverture facultative pour recevoir du béton avec ou sans armature
摘要
申请公布号
FR986992(A)
申请公布日期
1951.08.07
申请号
FRD986992
申请日期
1943.12.23
申请人
发明人
BERATO VICTOR-AIME
分类号
E04C3/22
主分类号
E04C3/22
代理机构
代理人
主权项
地址
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