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发明名称
ANLEGG FOR OLJEUTVINNING
摘要
申请公布号
NO851251(A)
申请公布日期
1985.03.28
申请号
NO19850001251
申请日期
1985.03.28
申请人
CARROLL, NOEL,
发明人
CARROLL, NOEL,
分类号
B04C5/30;B04C7/00;E21B;E21B43/34;(IPC1-7):E21B/
主分类号
B04C5/30
代理机构
代理人
主权项
地址
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