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发明名称
INFLATABLE PACKER ELEMENT
摘要
申请公布号
EP0089146(B1)
申请公布日期
1989.01.25
申请号
EP19830301136
申请日期
1983.03.03
申请人
THE GATES RUBBER COMPANY
发明人
ITO, LEONARD N.
分类号
E21B33/127;F16J15/46;(IPC1-7):E21B33/127
主分类号
E21B33/127
代理机构
代理人
主权项
地址
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