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发明名称
NADSTAVEC NA VRTACI TYC PRO STROJNI VRTANI V PRIPRAVNYCH DULNICH DILECH
摘要
申请公布号
CS8402874(A1)
申请公布日期
1985.09.17
申请号
CS19840002874
申请日期
1984.04.16
申请人
STEJSKAL IVAN;ZELENKA BRETISLAV;KOCUR RADOMIR;VRUBEL KAREL
发明人
STEJSKAL IVAN;ZELENKA BRETISLAV;KOCUR RADOMIR;VRUBEL KAREL
分类号
E21B17/02
主分类号
E21B17/02
代理机构
代理人
主权项
地址
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