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经营范围
发明名称
DRILLING TONGS
摘要
申请公布号
SU1615320(A1)
申请公布日期
1990.12.23
申请号
SU19884606025
申请日期
1988.11.16
申请人
GOJ VLADIMIR L
发明人
GOJ VLADIMIR L,SU
分类号
E21B19/14
主分类号
E21B19/14
代理机构
代理人
主权项
地址
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