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发明名称
Apparecchiatura per realizzare corpi tubolari mediante saldatura di un nastro ad elica, in particolare serbatoi
摘要
申请公布号
CH495182(A)
申请公布日期
1970.08.31
申请号
CH19680011924
申请日期
1968.08.08
申请人
KORKAN ANSTALT
发明人
分类号
B21C37/12;(IPC1-7):B21C37/12;B21D51/18
主分类号
B21C37/12
代理机构
代理人
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