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发明名称
Apparatus for indicating and recording borehole drilling
摘要
申请公布号
US3374484(A)
申请公布日期
1968.03.19
申请号
US19640406262
申请日期
1964.10.26
申请人
ZBIGNIEW S. WYSZYNSKI
发明人
WYSZYNSKI ZBIGNIEW S.
分类号
E21B45/00
主分类号
E21B45/00
代理机构
代理人
主权项
地址
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