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发明名称
COAL SEAM EXCAVATING APPARATUS
摘要
申请公布号
SU1472698(A1)
申请公布日期
1989.04.15
申请号
SU19874257416
申请日期
1987.06.08
申请人
KOCHETOV VLADIMIR G,SU
发明人
KOCHETOV VLADIMIR G,SU
分类号
E21F5/00
主分类号
E21F5/00
代理机构
代理人
主权项
地址
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