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发明名称
Aufbohrgeraet mit Rollen
摘要
申请公布号
DE1122467(B)
申请公布日期
1962.01.25
申请号
DE1959G026605
申请日期
1959.03.11
申请人
DIPL.-BERGING. ALBRECHT GRAEFER;GRETE NUESSE, GEB. KNUTH
发明人
GRAEFER DIPL.-BERGING. ALBRECHT;NUESSE DIPL.-BERGING. HUGO;PILGRIM ALFRED
分类号
E21B7/28;E21B10/28
主分类号
E21B7/28
代理机构
代理人
主权项
地址
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