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发明名称
CONTINUOUS MINING MACHINE WITH PIVOT STRUCTURE FOR MINING HEAD, GATHERING HEAD AND CONVEYOR BOOM
摘要
申请公布号
GB1221141(A)
申请公布日期
1971.02.03
申请号
GB19690009108
申请日期
1969.02.19
申请人
JEFFREY GALION INC.
发明人
分类号
E21C27/20;E21C27/24
主分类号
E21C27/20
代理机构
代理人
主权项
地址
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