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经营范围
发明名称
Production of collars in pipe
摘要
申请公布号
GB2087771(A)
申请公布日期
1982.06.03
申请号
GB19810035206
申请日期
1981.11.23
申请人
GA SERLACHIUS OY
发明人
分类号
B21C37/29;(IPC1-7):B21D19/12
主分类号
B21C37/29
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代理人
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