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发明名称
Perfectionnement des hourdis creux pour la fabrication des planchers en béton arméavec ou sans coffrage
摘要
申请公布号
FR978436(A)
申请公布日期
1951.04.13
申请号
FRD978436
申请日期
1948.12.31
申请人
发明人
DELOUPY GUY;REIMBERT MARCEL
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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