DEVICE FOR CUTTING INITIAL SLITS IN WELL,申请号SU19853978589-传众专利搜索

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发明名称	DEVICE FOR CUTTING INITIAL SLITS IN WELL
摘要
申请公布号	SU1307056(A1)	申请公布日期	1987.04.30
申请号	SU19853978589	申请日期	1985.11.20
申请人	INST GORNOGO DELA SO AN SSSR	发明人	KYU NIKOLAJ G,SU;CHEREMNYKH GALINA V,SU;CHERNOV OLEG I,SU;SHABALIN IVAN V,SU;SHEPELEV LEV N,SU
分类号	E21C37/00	主分类号	E21C37/00
代理机构		代理人
主权项
地址

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