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发明名称
VORRICHTUNG ZUM BOHREN
摘要
申请公布号
AT382682(B)
申请公布日期
1987.03.25
申请号
AT19830001233
申请日期
1983.04.07
申请人
VEREINIGTE EDELSTAHLWERKE AKTIENGESELLSCHAFT (VEW)
发明人
MAYERHOFER WALTER ING.
分类号
E21B1/00;E21B1/26;E21B19/16;(IPC1-7):E21B19/16
主分类号
E21B1/00
代理机构
代理人
主权项
地址
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