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发明名称
Nouveau procédé pour la fabrication de tuyaux en tôle et appareil pour la mise en oeuvre de ce procédé
摘要
申请公布号
FR740146(A)
申请公布日期
1933.01.21
申请号
FRD740146
申请日期
1932.07.20
申请人
发明人
ROCCHI VITTORIO
分类号
B21C37/08
主分类号
B21C37/08
代理机构
代理人
主权项
地址
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