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发明名称
METHOD FOR DETERMINING THE STRESS ANISOTROPY IN A HORIZONTAL PLANE
摘要
申请公布号
US3440875(A)
申请公布日期
1969.04.29
申请号
USD3440875
申请日期
1967.06.20
申请人
CONTINENTAL OIL CO.
发明人
CARROLL F. KNUTSON
分类号
E21B49/00;(IPC1-7):E21B47/00
主分类号
E21B49/00
代理机构
代理人
主权项
地址
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