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经营范围
发明名称
BOREKRONE MED RULLESKJAER.
摘要
申请公布号
NO158589(B)
申请公布日期
1988.06.27
申请号
NO19810000914
申请日期
1981.03.17
申请人
REED ROCK BIT COMPANY
发明人
TAYLOR, PHILIP ALAN;CARTER, MARK WARREN;CHILDERS, JOHN STEPHENSON;PASTUSEK, PAUL ERNEST
分类号
E21B10/18;(IPC1-7):E21B10/18
主分类号
E21B10/18
代理机构
代理人
主权项
地址
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