METHOD AND DEVICE FOR TUNNELING,申请号USD3597929-传众专利搜索

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发明名称	METHOD AND DEVICE FOR TUNNELING
摘要
申请公布号	US3597929(A)	申请公布日期	1971.08.10
申请号	USD3597929	申请日期	1968.08.02
申请人	ALBERT G. BODINE	发明人	ALBERT G. BODINE
分类号	E21B7/24;E21D9/04;E21D9/10;(IPC1-7):E01G5/06	主分类号	E21B7/24
代理机构		代理人
主权项
地址

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