METHOD AND APPARATUS FOR CONTROLLING THE AXIAL LOAD OF DRILL BIT,申请号SU19874251406-传众专利搜索

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发明名称	METHOD AND APPARATUS FOR CONTROLLING THE AXIAL LOAD OF DRILL BIT
摘要
申请公布号	SU1476115(A1)	申请公布日期	1989.04.30
申请号	SU19874251406	申请日期	1987.05.28
申请人	VNI PK I PO AVTOMATIZIROVANNOMU ELEKTROPRIVODU V PROMY, CEóÓCKOM XO³ùöCTBE ô HA TPAHCüOPTE	发明人	MOTSOKHEJN BORIS I,SU;PARFENOV BORIS M,SU;POGOSOV ALEKSANDR G,SU;SHINYANSKIJ ALEKSANDR V,SU
分类号	E21B45/00	主分类号	E21B45/00
代理机构		代理人
主权项
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