PERCUSSIVE ROCK DRILLING,申请号ZA19830009387-传众专利搜索

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发明名称	PERCUSSIVE ROCK DRILLING
摘要
申请公布号	ZA8309387(B)	申请公布日期	1984.07.25
申请号	ZA19830009387	申请日期	1983.12.19
申请人	CHAMBER OF MINES SERVICES LTD	发明人	JOUGHIN NOEL CAIN;WALCZAK ZYGMUNT JAN;HASLER MICHAEL CHARLES
分类号	E21C	主分类号	E21C
代理机构		代理人
主权项
地址

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