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发明名称
SPEAR
摘要
申请公布号
RU1838576(C)
申请公布日期
1993.08.30
申请号
SU19915014991
申请日期
1991.09.16
申请人
KURTOV VENIAMIN D;BILUNIK NIKOLAJ F;BOSYAK ALEKSEJ V
发明人
KURTOV VENIAMIN D;BILUNIK NIKOLAJ F;BOSYAK ALEKSEJ V
分类号
E21B31/00
主分类号
E21B31/00
代理机构
代理人
主权项
地址
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