Sub-assembly for lubricating rock drill bit.,申请号ZA19970002592-传众专利搜索

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发明名称	Sub-assembly for lubricating rock drill bit.
摘要
申请公布号	ZA9702592(B)	申请公布日期	1997.10.20
申请号	ZA19970002592	申请日期	1997.03.26
申请人	DAVID THOMAS HANNS	发明人	DAVID THOMAS HANNS
分类号	B23Q;B67D;E21B	主分类号	B23Q
代理机构		代理人
主权项
地址

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