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US Trademark Classification

Oil well casing, tubing, and drill pipe installation 037-87

油井套管、油管和钻杆安装

Chinese 油井套管、油管和钻杆安装
English Oil well casing, tubing, and drill pipe installation
Spanish instalación de revestimientos, tuberías y tuberías de perforación de pozos petrolíferos
Term ID
037-87
Class
37
Type
Services
Status
Active · added, not since modified (A)
Effective date
1991-04-02
Version
07-1997