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发明名称
DEVICE FOR UNMAKING DOWNHOLE
摘要
申请公布号
SU1684476(A1)
申请公布日期
1991.10.15
申请号
SU19894657477
申请日期
1989.03.01
申请人
AZERB NI PK I NEFTYANOGO MASHINOSTROENIYA
发明人
ABASOV FARKHAD M,SU
分类号
E21B31/00;E21B23/00
主分类号
E21B31/00
代理机构
代理人
主权项
地址
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