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经营范围
发明名称
Système de raccordement électriquement isolant d'éléments tubulaires métalli- ques pouvant notamment servir de structures d'antenne située à grande profon- deur.
摘要
申请公布号
OA9045(A)
申请公布日期
1991.03.31
申请号
OA19890059570
申请日期
1989.05.05
申请人
GEOSERVICES
发明人
ISSENMANN OLIVIER
分类号
F16L13/10;B21D39/04;E21B17/02;E21B17/04;E21B47/12;F16L13/00;F16L25/02;H01Q1/04;(IPC1-7):E21B17/08;H01Q11/00
主分类号
F16L13/10
代理机构
代理人
主权项
地址
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