A PERCUSSIVE ROTARY ROCK CUTTING DEVICE,申请号ZA19820002391-传众专利搜索

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发明名称	A PERCUSSIVE ROTARY ROCK CUTTING DEVICE
摘要
申请公布号	ZA8202391(B)	申请公布日期	1983.12.28
申请号	ZA19820002391	申请日期	1982.04.07
申请人	CHAMBER OF MINES SERVICES(PTY)LTD	发明人	JOUGHIN NOEL CAIN;DAVID JAMES FREDERICK;FENN ORRIE
分类号	E21B;E21C	主分类号	E21B
代理机构		代理人
主权项
地址

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