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经营范围
发明名称
DRILLING TOOL COVERING
摘要
申请公布号
SU1765343(A1)
申请公布日期
1992.09.30
申请号
SU19904852017
申请日期
1990.07.18
申请人
SURGUTSKOE OTDEL ZAPADNO-SIBIRSKOGO NI PK I TEKHNOLOGII GLUBOKOGO RAZVEDOCHNOGO BURENIYA
发明人
ZINNATULLIN MARS KH,SU;ESHIMOV GEORGIJ K,SU;KASTERIN YURIJ P,SU
分类号
E21B15/00;E21B7/02
主分类号
E21B15/00
代理机构
代理人
主权项
地址
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