Method and means for tunneling or the like in rock,申请号US19480049318-传众专利搜索

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发明名称	Method and means for tunneling or the like in rock
摘要
申请公布号	US2655360(A)	申请公布日期	1953.10.13
申请号	US19480049318	申请日期	1948.09.15
申请人	AKTIEBOLAGET ATLAS DIESEL	发明人	DANIELSSON JAN PATRIK
分类号	E21D9/12	主分类号	E21D9/12
代理机构		代理人
主权项
地址

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