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发明名称
DOWN-HOLE PROBE ASSEMBLIES
摘要
申请公布号
GB8927619(D0)
申请公布日期
1990.02.07
申请号
GB19890027619
申请日期
1989.12.06
申请人
BAROID TECHNOLOGY INC
发明人
分类号
E21B47/01
主分类号
E21B47/01
代理机构
代理人
主权项
地址
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