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经营范围
发明名称
DRILLING RIG
摘要
申请公布号
SU956779(A1)
申请公布日期
1982.09.07
申请号
SU19803006637
申请日期
1980.11.20
申请人
INST GORNOGO DELA SO AN SSSR
发明人
PETUKHOV VADIM D,SU;ZAKABLUKOVSKIJ NIKODIM G,SU;MUKHIN ZHORES G,SU;BOBROV OLEG I,SU
分类号
E21B19/086;(IPC1-7):E21C5/10
主分类号
E21B19/086
代理机构
代理人
主权项
地址
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