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发明名称
Isolation packer for well pump
摘要
申请公布号
US3196948(A)
申请公布日期
1965.07.27
申请号
US19620186549
申请日期
1962.04.10
申请人
AMERICAN METAL CLIMAX, INC.
发明人
DYE HERBERT G.
分类号
E21B33/12
主分类号
E21B33/12
代理机构
代理人
主权项
地址
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