MOBILE DRILL-BORER,申请号USD3570607-传众专利搜索

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发明名称	MOBILE DRILL-BORER
摘要
申请公布号	US3570607(A)	申请公布日期	1971.03.16
申请号	USD3570607	申请日期	1969.03.14
申请人	OUTOKUMPU OY	发明人	KAARLO HEIKKI JUHANI WENNERVIRTA;HEIKKI VEIKKO AULANKO
分类号	E21B7/02;(IPC1-7):E21C11/02	主分类号	E21B7/02
代理机构		代理人
主权项
地址

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