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发明名称
LIBERADOR DE CONO SECUNDARIO.
摘要
申请公布号
MX9207600(A)
申请公布日期
1993.03.01
申请号
MX19920007600
申请日期
1992.12.29
申请人
KENNETH W PEMBERTON
发明人
HOLLIS A BAUGH P E
分类号
E21B7/00;(IPC1-7):E21B7/00
主分类号
E21B7/00
代理机构
代理人
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