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发明名称
Cementing Apparatus
摘要
申请公布号
CA2094884(A1)
申请公布日期
1993.11.02
申请号
CA19932094884
申请日期
1993.04.26
申请人
DAVIS-LYNCH, INC.
发明人
COONE, MALCOLM G.;COLE, FRANK
分类号
E21B21/10;E21B33/16;(IPC1-7):E21B33/13
主分类号
E21B21/10
代理机构
代理人
主权项
地址
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