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经营范围
发明名称
HYDRAULIC FORMATION PACKING
摘要
申请公布号
US3587741(A)
申请公布日期
1971.06.28
申请号
USD3587741
申请日期
1969.09.15
申请人
EARL MARTIN CASEY
发明人
EARL MARTIN CASEY
分类号
E21B43/04;(IPC1-7):E21B43/04
主分类号
E21B43/04
代理机构
代理人
主权项
地址
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