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发明名称
Apparatus for penetrating and hydraulically eracturing well formations
摘要
申请公布号
US2758653(A)
申请公布日期
1956.08.14
申请号
US19540475601
申请日期
1954.12.16
申请人
DESBROW FLOYD H
发明人
DESBROW FLOYD H.
分类号
E21B43/114;E21B43/26
主分类号
E21B43/114
代理机构
代理人
主权项
地址
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