Device in impact machines,申请号US19900476989-传众专利搜索

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发明名称	Device in impact machines
摘要
申请公布号	US5005656(A)	申请公布日期	1991.04.09
申请号	US19900476989	申请日期	1990.02.08
申请人	ATLAS COPCO MCT AB	发明人	RODERT, JOERGEN A. R.
分类号	E21B4/02;E21B3/00;E21B6/02;E21B7/20;E21B17/00;E21B17/10;E21B21/00;E21B21/10	主分类号	E21B4/02
代理机构		代理人
主权项
地址

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