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经营范围
发明名称
Portable Well Pipe and Pump Puller
摘要
申请公布号
CA2100103(A1)
申请公布日期
1994.01.10
申请号
CA19932100103
申请日期
1993.07.08
申请人
WILBERT, ROBERT A.
发明人
WILBERT, ROBERT A.
分类号
E21B19/22;(IPC1-7):E21B19/22
主分类号
E21B19/22
代理机构
代理人
主权项
地址
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