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发明名称
DUAL BIAS WELD FOR CONTINUOUS COILED TUBING
摘要
申请公布号
EP0746442(A4)
申请公布日期
1997.03.12
申请号
EP19950903663
申请日期
1994.12.02
申请人
QUALITY TUBING INC.
发明人
STAGG, ROBERT, E.
分类号
B21C37/08;B21B15/00;B23K9/025;B23K33/00;F16L9/16;(IPC1-7):B23K33/00;B23K101/06
主分类号
B21C37/08
代理机构
代理人
主权项
地址
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