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发明名称
ROLLER CUTTER UNIT
摘要
申请公布号
SU1665015(A1)
申请公布日期
1991.07.23
申请号
SU19894659135
申请日期
1989.03.06
申请人
VNII BUROVOJ TEKHNIKI
发明人
POPOV ALEKSANDR N,SU
分类号
E21B10/22
主分类号
E21B10/22
代理机构
代理人
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