A hydraulic percussive in-hole rock drilling machine,申请号HK20060109440-传众专利搜索

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发明名称	A hydraulic percussive in-hole rock drilling machine
摘要
申请公布号	HK1089219(A1)	申请公布日期	2008.07.18
申请号	HK20060109440	申请日期	2006.08.25
申请人	WASSARA AB	发明人	FREDRIK EGERSTROM
分类号	E21B;B25D;E21B4/14	主分类号	E21B
代理机构		代理人
主权项
地址

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