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经营范围
发明名称
BORKRONE.
摘要
申请公布号
NO900814(D0)
申请公布日期
1990.02.20
申请号
NO19900000814
申请日期
1990.02.20
申请人
AMOCO CORPORATION
发明人
BRETT, JAMES FORD;WARREN, TOMMY MELVIN
分类号
E21B10/26;B23Q11/00;E21B10/42;E21B10/43;E21B10/46;G01B5/008;(IPC1-7):E21B/
主分类号
E21B10/26
代理机构
代理人
主权项
地址
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