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发明名称
Procédé de rétreint d'ébauches tubulaires et produits obtenus par la mise en oeuvre de ce procédé
摘要
申请公布号
FR1155575(A)
申请公布日期
1958.05.06
申请号
FRD1155575
申请日期
1956.07.06
申请人
发明人
LEJAULT PIERRE-JOSEPH
分类号
B21D41/04
主分类号
B21D41/04
代理机构
代理人
主权项
地址
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