WELLHEAD DEVICE FOR SUSPENSION OF WELL PIPE,申请号SU19904779435-传众专利搜索

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发明名称	WELLHEAD DEVICE FOR SUSPENSION OF WELL PIPE
摘要
申请公布号	RU1776757(C)	申请公布日期	1992.11.23
申请号	SU19904779435	申请日期	1990.01.08
申请人	AZERB NI PK I NEFTYANOGO MASHINOSTROENIYA	发明人	GADZHIEV KHUDAVERDI V,SU;PEREVEZENTSEV LEONID V,SU
分类号	E21B33/03	主分类号	E21B33/03
代理机构		代理人
主权项
地址

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