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经营范围
发明名称
BORET¨RN.
摘要
申请公布号
NO852691(A)
申请公布日期
1986.04.07
申请号
NO19850002691
申请日期
1985.07.04
申请人
O.T.C. A/S
发明人
SWISHER, ROGER C.;FLOBAK, JENS OLAV;EILERTSEN, BJOERN;JAKOBSEN, NIKOLAI;GABRIELSEN, JONNY
分类号
E21B;E21B15/00;E21B19/08;(IPC1-7):E21B/
主分类号
E21B
代理机构
代理人
主权项
地址
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