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经营范围
发明名称
Plugging materials for vertical fractures
摘要
申请公布号
US3249158(A)
申请公布日期
1966.05.03
申请号
US19620174276
申请日期
1962.02.19
申请人
THE ATLANTIC REFINING COMPANY
发明人
JR. WILLIAM F. KIESCHNICK,;PERKINS THOMAS K.;WYANT REECE E.
分类号
E21B43/26
主分类号
E21B43/26
代理机构
代理人
主权项
地址
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