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经营范围
发明名称
BOHRARM
摘要
申请公布号
ATA530381(A)
申请公布日期
1983.04.15
申请号
AT19810005303
申请日期
1981.12.11
申请人
VEREINIGTE EDELSTAHLWERKE AKTIENGESELLSCHAFT (VEW)
发明人
HOLTSCHULTE ULRICH ING.;BERGMANN KURT ING.;SCHOEN KONRAD ING.
分类号
E21B7/02;E21B15/04;(IPC1-7):E21B11/02
主分类号
E21B7/02
代理机构
代理人
主权项
地址
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