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发明名称
ROLLER BIT
摘要
申请公布号
SU1484896(A1)
申请公布日期
1989.06.07
申请号
SU19874273689
申请日期
1987.07.01
申请人
DROGOBYCHSKIJ DOLOTNYJ ZAVOD
发明人
VLADISLAVLEV YURIJ E,SU;POZDNYAKOV VIKTOR I,SU;SADOMOV VIKTOR V,SU;GUK ROMAN I,SU;YAKIMCHUK ULYAN N,SU
分类号
E21B10/08
主分类号
E21B10/08
代理机构
代理人
主权项
地址
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