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发明名称
Jarring tool
摘要
申请公布号
US1852250(A)
申请公布日期
1932.04.05
申请号
US19300420338
申请日期
1930.01.13
申请人
MCCULLOUGH IRA J
发明人
MCCULLOUGH IRA J.
分类号
E21B31/107
主分类号
E21B31/107
代理机构
代理人
主权项
地址
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