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发明名称
Schliessgeraet mit Hohlladungen zum Durchlocehn der Auskleidungen von Tiefbohrloechern
摘要
申请公布号
DE1025362(B)
申请公布日期
1958.03.06
申请号
DE1957L026734
申请日期
1957.01.30
申请人
LANE-WELLS COMPANY
发明人
LARSEN RICHARD WARREN;RUSSELL HERBERT RAYMOND
分类号
E21B43/117
主分类号
E21B43/117
代理机构
代理人
主权项
地址
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