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经营范围
发明名称
Sikkerhetssystem
摘要
申请公布号
NO960227(A)
申请公布日期
1996.07.24
申请号
NO19960000227
申请日期
1996.01.19
申请人
WESTERN ATLAS INTERNATIONAL INC
发明人
CRAWFORD, ALAN W.;ELLIS, JAMES
分类号
E21B43/1185;F42D1/05;(IPC1-7):E21B43/118;F42B3/18
主分类号
E21B43/1185
代理机构
代理人
主权项
地址
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