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发明名称
PERFORATOR
摘要
申请公布号
SU1247525(A1)
申请公布日期
1986.07.30
申请号
SU19853851377
申请日期
1985.02.04
申请人
REVOLYUTSII I GORNOGO DELA IM.A.A.SKOCHINSKOGO
发明人
BURTOLIK BORIS I,SU;ZAKHARIKOV GENNADIJ M,SU;PETROV NIKOLAJ G,SU;SVOROBA VLADIMIR YA,SU;SOKOLINSKIJ VLADIMIR B,SU
分类号
E21B6/04;B25D16/00
主分类号
E21B6/04
代理机构
代理人
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