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US Trademark Classification

Chemicals used in oil drilling 001-58

石油钻探中使用的化学品

Chinese 石油钻探中使用的化学品
English Chemicals used in oil drilling
Spanish Productos químicos utilizados en la perforación petrolera
Term ID
001-58
Class
01
Type
Goods
Status
Active · added, not since modified (A)
Effective date
1991-04-02
Version
07-1997