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发明名称
CONVEYOR ADVANCING DEVICES FOR USE IN MINES
摘要
申请公布号
GB1204373(A)
申请公布日期
1970.09.09
申请号
GB19670015065
申请日期
1967.04.03
申请人
DOWTY MINING EQUIPMENT LIMITED
发明人
DENNIS HENRY CANNON
分类号
E21D23/08
主分类号
E21D23/08
代理机构
代理人
主权项
地址
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