ARRANGEMENT FOR SEALING-AWAY A WELLHEAD,申请号SU19813350294-传众专利搜索

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发明名称	ARRANGEMENT FOR SEALING-AWAY A WELLHEAD
摘要
申请公布号	SU998731(A1)	申请公布日期	1983.02.23
申请号	SU19813350294	申请日期	1981.11.04
申请人	KATELLA SERGEJ A,SU;NECHUKHRAN IGOR,SU;KUZNETSOV BORIS A,SU	发明人	KATELLA SERGEJ A,SU;NECHUKHRAN IGOR I,SU;KUZNETSOV BORIS A,SU
分类号	E21B33/03;E21B33/06;(IPC1-7):E21B33/03	主分类号	E21B33/03
代理机构		代理人
主权项
地址

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