DEVICE FOR PROTECTING ROLLER BIT BEARINGS FROM SLURRY,申请号SU19884382081-传众专利搜索

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发明名称	DEVICE FOR PROTECTING ROLLER BIT BEARINGS FROM SLURRY
摘要
申请公布号	SU1631156(A1)	申请公布日期	1991.02.28
申请号	SU19884382081	申请日期	1988.02.19
申请人	VNI, üPOEKTHÕö ô KOHCTPÔKTOPCKôö ôHCTôTÔT ×OPHO×O ¯EóA \|BETHOö METAóóÔP×ôô	发明人	GRITSENKO YURIJ L,SU;GLADKIKH MIKHAIL A,SU;TIKHOMIROV ANATOLIJ P,SU
分类号	E21B10/08	主分类号	E21B10/08
代理机构		代理人
主权项
地址

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