AN HYDRAULIC HAMMER DRILL,申请号GB19690016300-传众专利搜索

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发明名称	AN HYDRAULIC HAMMER DRILL
摘要
申请公布号	GB1254379(A)	申请公布日期	1971.11.24
申请号	GB19690016300	申请日期	1969.03.28
申请人	ROLF-AKE EDSTROM;FRANS ERIK STIG STAFREN	发明人	ROLF-AKE EDSTROM;FRANS ERIK STIG STAFREN
分类号	B25D9/12;E21B6/00	主分类号	B25D9/12
代理机构		代理人
主权项
地址

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