DEVICE FOR SUSPENDING HIDDEN CASING STRINGS,申请号SU19884454009-传众专利搜索

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发明名称	DEVICE FOR SUSPENDING HIDDEN CASING STRINGS
摘要
申请公布号	SU1578316(A1)	申请公布日期	1990.07.15
申请号	SU19884454009	申请日期	1988.07.04
申请人	SEVERO-KAVKAZSKIJ GNI PI NEFTYANOJ PROMYSHLENNOSTI	发明人	SHLYAKHOVOJ SERGEJ D,SU
分类号	E21B33/14;E21B43/10	主分类号	E21B33/14
代理机构		代理人
主权项
地址

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