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发明名称
SKJ|REMNE.
摘要
申请公布号
NO853925(A)
申请公布日期
1986.04.07
申请号
NO19850003925
申请日期
1985.10.03
申请人
STRATA BIT CORPORATION
发明人
DENNIS, MAHLON D.
分类号
E21B10/56;E21B10/567;(IPC1-7):E21B/
主分类号
E21B10/56
代理机构
代理人
主权项
地址
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