DISC CUTTERS FOR ROCK BORING MACHINES,申请号GB19750020213-传众专利搜索

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发明名称	DISC CUTTERS FOR ROCK BORING MACHINES
摘要
申请公布号	GB1479374(A)	申请公布日期	1977.07.13
申请号	GB19750020213	申请日期	1975.05.13
申请人	BOART HARDMETALS LTD	发明人
分类号	E21B10/12;E21B10/52;(IPC1-7):E21B9/14	主分类号	E21B10/12
代理机构		代理人
主权项
地址

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