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发明名称
Prövetaker
摘要
申请公布号
NO973858(D0)
申请公布日期
1997.08.22
申请号
NO19970003858
申请日期
1997.08.22
申请人
AARDAL, KAARE
发明人
AARDAL, KAARE
分类号
E21B25/00;E21B25/18;(IPC1-7):G01N
主分类号
E21B25/00
代理机构
代理人
主权项
地址
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