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发明名称
Vorrichtung zur Entnahme von Bodenproben
摘要
申请公布号
DE1708545(A1)
申请公布日期
1971.05.13
申请号
DE19681708545
申请日期
1968.02.23
申请人
FA. ING. WERNER NORDMEYER
发明人
NORDMEYER,WERNER
分类号
E21B25/00
主分类号
E21B25/00
代理机构
代理人
主权项
地址
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