ROTATING GEAR OF DRILLING RIG,申请号SU19874242280-传众专利搜索

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发明名称	ROTATING GEAR OF DRILLING RIG
摘要
申请公布号	SU1465522(A1)	申请公布日期	1989.03.15
申请号	SU19874242280	申请日期	1987.05.07
申请人	GOJ VLADIMIR L,SU;POLYAKOV GRIGORIJ D,SU	发明人	GOJ VLADIMIR L,SU;POLYAKOV GRIGORIJ D,SU
分类号	E21B3/02	主分类号	E21B3/02
代理机构		代理人
主权项
地址

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