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经营范围
发明名称
Procédé de fabrication de conduits ou similaires en béton ou autre, installation pour la mise en oeuvre du présent procédé et conduits conformes à ceux obtenus àl'aide de ce procédé ou procédé similaire
摘要
申请公布号
FR1299830(A)
申请公布日期
1962.07.27
申请号
FR19610869471
申请日期
1961.07.27
申请人
发明人
GISPERT EMILIA ROSELL
分类号
B28B21/30
主分类号
B28B21/30
代理机构
代理人
主权项
地址
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