Auger type mining machine,申请号US19610108371-传众专利搜索

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发明名称	Auger type mining machine
摘要
申请公布号	US3026098(A)	申请公布日期	1962.03.20
申请号	US19610108371	申请日期	1961.05.08
申请人	WILCOX MANUFACTURING COMPANY	发明人	WILCOX ARNOLD G.
分类号	E21C27/02	主分类号	E21C27/02
代理机构		代理人
主权项
地址

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