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经营范围
发明名称
Procédé de fabrication de tuyaux frettés précontraints
摘要
申请公布号
FR1099494(A)
申请公布日期
1955.09.06
申请号
FRD1099494
申请日期
1954.01.09
申请人
发明人
FERRAND GEORGES-AUGUSTE
分类号
B28B21/60
主分类号
B28B21/60
代理机构
代理人
主权项
地址
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