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发明名称
Portable and directional electrocrushing drill
摘要
The present invention relates to a portable, directional electrocrushing drilling apparatus and method.
申请公布号
ZA200900659(B)
申请公布日期
2010.10.27
申请号
ZA20090000659
申请日期
2009.01.28
申请人
TETRA CORPORATION
发明人
MOENY, WILLIAM M
分类号
E21B
主分类号
E21B
代理机构
代理人
主权项
地址
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