VERSIONS OF DRILLING TOOL FOR SINKING LARGE-DIAMETER WELLS AND VERTICAL SHAFTS,申请号SU19843791247-传众专利搜索

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发明名称	VERSIONS OF DRILLING TOOL FOR SINKING LARGE-DIAMETER WELLS AND VERTICAL SHAFTS
摘要
申请公布号	SU1502836(A1)	申请公布日期	1989.08.23
申请号	SU19843791247	申请日期	1984.09.12
申请人	TSNI PK I PROKHODCHESKIKH MAS	发明人	ANTIPOV VIKTOR V,SU;BRAKKER ILYA I,SU;SHEVALDIN ALEKSANDR G,SU;AGARKOV ANATOLIJ K,SU;KACHAN VIL G,SU;LEONENKO EVGENIJ V,SU
分类号	E21D1/06	主分类号	E21D1/06
代理机构		代理人
主权项
地址

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