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发明名称
PERFORATING APPARATUS
摘要
申请公布号
US3429384(A)
申请公布日期
1969.02.25
申请号
USD3429384
申请日期
1967.10.09
申请人
SCHLUMBERGER TECHNOLOGY CORP.
发明人
JAMES B. SHORE
分类号
E21B43/117;(IPC1-7):E21B43/11;E21C19/00
主分类号
E21B43/117
代理机构
代理人
主权项
地址
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