DISC CUTTING UNIT FOR USE ON ROCKBORING MACHINES,申请号ZM19730000094-传众专利搜索

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发明名称	DISC CUTTING UNIT FOR USE ON ROCKBORING MACHINES
摘要
申请公布号	ZM9473(A1)	申请公布日期	1974.03.21
申请号	ZM19730000094	申请日期	1973.06.04
申请人	HARD METALS LTD	发明人
分类号	E21B10/12;E21B10/52;E21D9/10;(IPC1-7):E02B/	主分类号	E21B10/12
代理机构		代理人
主权项
地址

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