Improvements in or relating to earth-boring apparatus for taking soil samples,申请号GB19800021910-传众专利搜索

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发明名称	Improvements in or relating to earth-boring apparatus for taking soil samples
摘要
申请公布号	GB2054703(A)	申请公布日期	1981.02.18
申请号	GB19800021910	申请日期	1980.07.03
申请人	HUG M	发明人
分类号	E21B25/06;(IPC1-7):E21B25/06	主分类号	E21B25/06
代理机构		代理人
主权项
地址

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