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发明名称
A rotary cutting tool for the mechanised cutting and loading of coal
摘要
申请公布号
GB1049365(A)
申请公布日期
1966.11.23
申请号
GB19640012793
申请日期
1964.03.26
申请人
USTAV UHELNEHO STROJIRENSTVI
发明人
分类号
E21C25/10
主分类号
E21C25/10
代理机构
代理人
主权项
地址
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