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发明名称
OIL-WELL VIBRATOR
摘要
申请公布号
RU1772345(C)
申请公布日期
1992.10.30
申请号
SU19904865221
申请日期
1990.09.10
申请人
ZAPADNO-SIBIRSKIJ NI PK I TEKHNOLOGII GLUBOKOGO RAZVEDOCHNOGO BURENIYA
发明人
SHILNIKOV MIKHAIL V,SU;YAGAFAROV ALIK K,SU;NESTEROV VALERIJ N,SU
分类号
E21B43/18
主分类号
E21B43/18
代理机构
代理人
主权项
地址
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