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发明名称
Swelling layer inflatable
摘要
申请公布号
GB0611347(D0)
申请公布日期
2006.07.19
申请号
GB20060011347
申请日期
2004.11.18
申请人
BAKER HUGHES INCORPORATED
发明人
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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