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发明名称
Vorrichtung zur Herstellung von Metallrohren mit schraubenlinienförmiger Schließfuge
摘要
申请公布号
AT284600(B)
申请公布日期
1970.09.25
申请号
AT19680002141
申请日期
1968.03.05
申请人
SPIRO INVESTMENT S.A.
发明人
分类号
B21C37/12;(IPC1-7):B21C37/12
主分类号
B21C37/12
代理机构
代理人
主权项
地址
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