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发明名称
Einbruch-Kernbohrmaschine
摘要
申请公布号
DE826896(C)
申请公布日期
1952.01.07
申请号
DE1950K003251
申请日期
1950.05.20
申请人
FRIED. KRUPP BERGWERKE ESSEN
发明人
MEININGHAUS DR.-ING. FRITZ
分类号
E21B7/00;E21B7/02;E21B19/08;E21D9/00
主分类号
E21B7/00
代理机构
代理人
主权项
地址
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