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发明名称
Hydraulically inflatable packer
摘要
申请公布号
US2643722(A)
申请公布日期
1953.06.30
申请号
US19480011214
申请日期
1948.02.26
申请人
LYNES, INC.
发明人
LYNES JOHN;ALLEN GEORGE H.;GARDNER JIMMY D.
分类号
E21B33/12;E21B33/127
主分类号
E21B33/12
代理机构
代理人
主权项
地址
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