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发明名称
ELECTRODYNAMIC PERCUSSIVE MECHANISM
摘要
申请公布号
SU1312164(A1)
申请公布日期
1987.05.23
申请号
SU19853904177
申请日期
1985.04.20
申请人
STIKHANOVSKIJ BORIS N,SU
发明人
STIKHANOVSKIJ BORIS N,SU
分类号
E21C37/00;E21B6/06
主分类号
E21C37/00
代理机构
代理人
主权项
地址
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