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发明名称
Perfectionnements apportés aux éléments de construction en béton armé et aux procédés servant à leur fabrication
摘要
申请公布号
FR949086(A)
申请公布日期
1949.08.19
申请号
FRD949086
申请日期
1947.06.24
申请人
ETABLISSEMENTS HAES
发明人
ABELES PAUL WILLIAM
分类号
B28B23/04;E04C3/26
主分类号
B28B23/04
代理机构
代理人
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