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发明名称
WORKING TOOL FOR DISINTEGRATION OF ROCK
摘要
申请公布号
SU1726764(A1)
申请公布日期
1992.04.15
申请号
SU19904807506
申请日期
1990.04.02
申请人
ZABAJKALSKIJ KOMPLEKSNYJ NII
发明人
YASHKIN ALEKSEJ Z,SU;BOBROVSKIKH VIKTOR P,SU
分类号
E21C37/02
主分类号
E21C37/02
代理机构
代理人
主权项
地址
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