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发明名称
ROCK-BREAKING DEVICE
摘要
申请公布号
SU1452911(A1)
申请公布日期
1989.01.23
申请号
SU19874241672
申请日期
1987.05.06
申请人
TSNI LABORATORIYA PROIZVODSTVENNOGO OBEDINENIYA "ORENBURGNEFT"
发明人
ROGOTSKIJ GENNADIJ V,SU
分类号
E21B7/14
主分类号
E21B7/14
代理机构
代理人
主权项
地址
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