Mucking machine for inclined mine shafts,申请号US19490082614-传众专利搜索

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发明名称	Mucking machine for inclined mine shafts
摘要
申请公布号	US2530714(A)	申请公布日期	1950.11.21
申请号	US19490082614	申请日期	1949.03.21
申请人	MCDOUGALL STANLEY W	发明人	MCDOUGALL STANLEY W.
分类号	E21D1/03	主分类号	E21D1/03
代理机构		代理人
主权项
地址

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