MINERAL CUTTING PICKS,申请号GB19770013824-传众专利搜索

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发明名称	MINERAL CUTTING PICKS
摘要
申请公布号	GB1557398(A)	申请公布日期	1979.12.12
申请号	GB19770013824	申请日期	1977.04.01
申请人	HALL & PICKLES LTD	发明人
分类号	E21C35/19;(IPC1-7):E21C35/18	主分类号	E21C35/19
代理机构		代理人
主权项
地址

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