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发明名称
Improvements in or relating to conveyor-cutter assemblies for use in mining
摘要
申请公布号
GB729374(A)
申请公布日期
1955.05.04
申请号
GB19530011059
申请日期
1953.04.22
申请人
STAMICARBON N.V.
发明人
分类号
E21C29/14
主分类号
E21C29/14
代理机构
代理人
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