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发明名称
COMBINATION PERFORATOR
摘要
申请公布号
SU1661378(A1)
申请公布日期
1991.07.07
申请号
SU19884467086
申请日期
1988.07.28
申请人
VNI PK I PO VZRYVNYM METODAM GEOFIZICHESKOJ RAZVEDKI
发明人
TSIRULIN VLADIMIR E,SU;MILEKHINA LYUDMILA A,SU;PIGAREV SERGEJ S,SU;TEBYAKIN VIKTOR M,SU
分类号
E21B43/116
主分类号
E21B43/116
代理机构
代理人
主权项
地址
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