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经营范围
发明名称
MINING MACHINES
摘要
申请公布号
GB1521006(A)
申请公布日期
1978.08.09
申请号
GB19760044813
申请日期
1976.10.28
申请人
GOSUDAR PROEKT KONSTRUKT I EXPERIM.INST.UGOL MASHINOSTR
发明人
分类号
E21C27/02;E21C31/02;E21C35/12;(IPC1-7):E21C27/32
主分类号
E21C27/02
代理机构
代理人
主权项
地址
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