Unit for driving tunnels in loose ground,申请号US19640366804-传众专利搜索

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发明名称	Unit for driving tunnels in loose ground
摘要
申请公布号	US3372553(A)	申请公布日期	1968.03.12
申请号	US19640366804	申请日期	1964.05.12
申请人	NAUCHNO-ISSLEDOVATELSKY INSTITUTE OSNOVANY I PADZEMNYKH SOORUZHENY	发明人	SAMOILOV VLADIMIR PAVLOVICH
分类号	E21D9/06	主分类号	E21D9/06
代理机构		代理人
主权项
地址

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