DRILL PIPE PROTECTOR,申请号SU19884621028-传众专利搜索

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发明名称	DRILL PIPE PROTECTOR
摘要
申请公布号	SU1684468(A1)	申请公布日期	1991.10.15
申请号	SU19884621028	申请日期	1988.11.28
申请人	SP K BYURO N-PROIZV OBEDINENIYA "GEOTEKHNIKA"	发明人	LACHINYAN LEONID A,SU;BOGOMOLOV ANATOLIJ K,SU;SKOROBOGATOV OLEG P,SU
分类号	E21B17/10	主分类号	E21B17/10
代理机构		代理人
主权项
地址

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