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发明名称
Apparatus for recovering junk from a well bore
摘要
申请公布号
US2728599(A)
申请公布日期
1955.12.27
申请号
US19520328240
申请日期
1952.12.23
申请人
WALDO MOORE GEORGE
发明人
MOORE GEORGE WALDO
分类号
E21B27/00;E21B31/08
主分类号
E21B27/00
代理机构
代理人
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