OBSTACLE-GROUND EARTH AUGER,申请号GB19830001466-传众专利搜索

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发明名称	OBSTACLE-GROUND EARTH AUGER
摘要
申请公布号	GB8301466(D0)	申请公布日期	1983.02.23
申请号	GB19830001466	申请日期	1983.01.19
申请人	SHIGA, S	发明人
分类号	E21B7/20;E21B10/44;(IPC1-7):E21B7/20	主分类号	E21B7/20
代理机构		代理人
主权项
地址

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