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发明名称
Improvements anchor means for a mine conveyor's driving gear head
摘要
申请公布号
GB1074676(A)
申请公布日期
1967.07.05
申请号
GB19630042121
申请日期
1963.10.25
申请人
W.E. & F. DOBSON LIMITED
发明人
COWLISHAW FRANK
分类号
E21F13/10
主分类号
E21F13/10
代理机构
代理人
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