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经营范围
发明名称
METHOD OF MINING MINERAL FIELDS
摘要
申请公布号
SU699184(A1)
申请公布日期
1979.11.25
申请号
SU19772477928
申请日期
1977.04.22
申请人
ZAJTSEV OLEG N,SU
发明人
ZAJTSEV OLEG N,SU
分类号
(IPC1-7):E21C41/06
主分类号
(IPC1-7):E21C41/06
代理机构
代理人
主权项
地址
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