THREE-CONE ROCK DRILLING BIT,申请号SU19884489189-传众专利搜索

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发明名称	THREE-CONE ROCK DRILLING BIT
摘要
申请公布号	SU1707175(A1)	申请公布日期	1992.01.23
申请号	SU19884489189	申请日期	1988.10.03
申请人	SP K BYURO V PROMYSHLENNOGO OBEDINENIYA "SOYUZGEOTEKHNIKA"	发明人	TRAVKIN VITALIJ S,SU;BURINSKIJ GENNADIJ G,SU;IVANOVSKAYA NADEZHDA I,SU;POLANSKIJ GRIGORIJ A,SU
分类号	E21B10/16	主分类号	E21B10/16
代理机构		代理人
主权项
地址

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