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发明名称
VANDIG BORESLAM FOR ANVENDELSE VED BORING AV HULL I UNDERSJOEISKE SKIFERFORMASJONER
摘要
申请公布号
NO144832(B)
申请公布日期
1981.08.10
申请号
NO19740003621
申请日期
1974.10.08
申请人
ITT INDUSTRIES INC,
发明人
GRAY, KENNETH RUSSELL,;DEWEYERT, HARVEY RUDOLPH,;BLARICOM, LLOYD EUGENE VAN,
分类号
C09K8/20;E21B21/00;(IPC1-7):C09K7/00
主分类号
C09K8/20
代理机构
代理人
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