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发明名称
PROCEDE DE FABRICATION PAR MATRICAGE D'UN RACCORD ET RACCORD SYMETRIQUE OBTENU SELON CE PROCEDE
摘要
申请公布号
FR2571991(B1)
申请公布日期
1987.02.13
申请号
FR19840016022
申请日期
1984.10.19
申请人
ST MIHIEL SA
发明人
ROGER DUMEZ
分类号
B21J13/02;B21K1/16;F16L37/252;(IPC1-7):B21K1/14
主分类号
B21J13/02
代理机构
代理人
主权项
地址
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