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经营范围
发明名称
PLUGGING-BACK TOOL
摘要
申请公布号
SU1745890(A1)
申请公布日期
1992.07.07
申请号
SU19894688492
申请日期
1989.03.21
申请人
TREST "DALVOSTUGLERAZVEDKA"
发明人
UDOVICHENKO VIKTOR N,SU
分类号
E21B27/02
主分类号
E21B27/02
代理机构
代理人
主权项
地址
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