HYDRAULIC DOWN-THE-HOLE ROCK DRILL,申请号ZA19890000248-传众专利搜索

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发明名称	HYDRAULIC DOWN-THE-HOLE ROCK DRILL
摘要
申请公布号	ZA8900248(B)	申请公布日期	1990.11.28
申请号	ZA19890000248	申请日期	1989.01.12
申请人	G-DRILL AB.	发明人	PER GUSTAFSSON
分类号	B25D	主分类号	B25D
代理机构		代理人
主权项
地址

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