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发明名称
Dispositif pour la fabrication de tubes à cordon de soudure hélicoïdal
摘要
申请公布号
FR1279745(A)
申请公布日期
1961.12.22
申请号
FR19610850720
申请日期
1961.01.25
申请人
INTERCONTINENTAL ENTERPRISES EX- UND IMPORT G. M. B. H.
发明人
分类号
B21C37/12
主分类号
B21C37/12
代理机构
代理人
主权项
地址
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