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发明名称
Casing cutter
摘要
申请公布号
US1788579(A)
申请公布日期
1931.01.13
申请号
US19260152695
申请日期
1926.12.04
申请人
LOWREY GEORGE A;HALL WALTER F
发明人
LOWREY GEORGE A.;HALL WALTER F.
分类号
E21B29/00
主分类号
E21B29/00
代理机构
代理人
主权项
地址
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