Machine for mining and loading coal,申请号US19500158517-传众专利搜索

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发明名称	Machine for mining and loading coal
摘要
申请公布号	US2583458(A)	申请公布日期	1952.01.22
申请号	US19500158517	申请日期	1950.04.27
申请人	WYLAM LAWRENCE L	发明人	WYLAM LAWRENCE L.
分类号	E21C27/24	主分类号	E21C27/24
代理机构		代理人
主权项
地址

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