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经营范围
发明名称
RUNDMEISSEL
摘要
申请公布号
DE7709744(U1)
申请公布日期
1978.12.14
申请号
DE19770009744U
申请日期
1977.03.28
申请人
VEREINIGTE OESTERREICHISCHE EISENUND STAHLWERKE - ALPINE MONTAN AG, WIEN
发明人
分类号
E21B10/00;E21C35/18;E21C35/183;(IPC1-7):E21C35/18
主分类号
E21B10/00
代理机构
代理人
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