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发明名称
Procédé de fabrication d'un élément creux en béton armé et vibré pour plancher sans coffrage
摘要
申请公布号
FR985728(A)
申请公布日期
1951.07.23
申请号
FRD985728
申请日期
1949.05.05
申请人
发明人
MERIGON PIERRE-ALBERT
分类号
B28B7/18;B28B7/28
主分类号
B28B7/18
代理机构
代理人
主权项
地址
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