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发明名称
APPARATUS FOR DRILLING ASCENDING WORKINGS
摘要
申请公布号
SU1337520(A1)
申请公布日期
1987.09.15
申请号
SU19864053076
申请日期
1986.04.08
申请人
VNI PK I GORNORUDNOGO MASHINOSTROENIYA
发明人
BUNIN NIKOLAJ I,SU;VOYUTA LEONTIJ F,SU;SAMKO NINA A,SU
分类号
E21D3/00
主分类号
E21D3/00
代理机构
代理人
主权项
地址
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