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发明名称
Vollbohrkrone
摘要
申请公布号
DE1083763(B)
申请公布日期
1960.06.23
申请号
DE1958S059530
申请日期
1958.08.22
申请人
SALZGITTER MASCHINEN AKTIENGESELLSCHAFT
发明人
GEILENBERG EDMUND
分类号
E21B10/04;E21B10/44;E21B10/48;E21B10/60
主分类号
E21B10/04
代理机构
代理人
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