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经营范围
发明名称
CLEANING AND PUMPING APPARATUS FOR OIL WELL PRODUCTION
摘要
申请公布号
GB1538753(A)
申请公布日期
1979.01.24
申请号
GB19760019648
申请日期
1976.05.13
申请人
KOBE INC
发明人
分类号
E21B43/12;E21B43/34;(IPC1-7):E21B43/16
主分类号
E21B43/12
代理机构
代理人
主权项
地址
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