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US Trademark Classification

Chemical additives for drilling muds 001-1352

钻井泥浆化学添加剂

Chinese 钻井泥浆化学添加剂
English Chemical additives for drilling muds
Spanish Aditivos químicos para lodos de perforación
Term ID
001-1352
Class
01
Type
Goods
Status
Active · added, not since modified (A)
Effective date
2010-04-29
Version
09-2007