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发明名称
DEEP-WELL ULTRASONIC TOOL
摘要
申请公布号
SU1520242(A1)
申请公布日期
1989.11.07
申请号
SU19874335573
申请日期
1987.09.30
申请人
BAKULIN VIKTOR N,SU;MAKSIMOV IGOR P,SU
发明人
BAKULIN VIKTOR N,SU;MAKSIMOV IGOR P,SU
分类号
E21C39/00
主分类号
E21C39/00
代理机构
代理人
主权项
地址
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