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发明名称
PIPE DRAWING METHOD
摘要
申请公布号
PL180777(B1)
申请公布日期
2001.04.30
申请号
PL19960317508
申请日期
1996.12.16
申请人
BENTELER AG
发明人
BEER GERHARD;BERGS NORBERT;VAUBEL GERT;BARSCHDORFF DIETER;KRONMUELLER MARTIN
分类号
B21C1/22;B21C1/24;B21C51/00
主分类号
B21C1/22
代理机构
代理人
主权项
地址
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