Способ освобождения прихваченных в скважине бурильных или других труб,申请号SU19570568526-传众专利搜索

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发明名称	Способ освобождения прихваченных в скважине бурильных или других труб
摘要
申请公布号	SU125212(A1)	申请公布日期	1959.11.30
申请号	SU19570568526	申请日期	1957.03.09
申请人	PIGROV V.M.;RUDENKO N.M.;SHAPIROVSKIJ N.I.	发明人	PIGROV V.M.;RUDENKO N.M.;SHAPIROVSKIJ N.I.
分类号	E21B31/03;E21B23/04	主分类号	E21B31/03
代理机构		代理人
主权项
地址

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