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发明名称
JET-TYPE ROCK BREAKER
摘要
申请公布号
RU1796021(C)
申请公布日期
1993.02.15
申请号
SU19904899084
申请日期
1990.11.26
申请人
MAKAROV MIKHAIL A,SU
发明人
MAKAROV MIKHAIL A,SU
分类号
E21C25/60
主分类号
E21C25/60
代理机构
代理人
主权项
地址
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