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EU Trademark Classification

Drilling muds for use in oil well drilling 2695

用于油井钻探的钻井泥浆

Chinese 用于油井钻探的钻井泥浆
English Drilling muds for use in oil well drilling
Spanish Lodos de perforación para uso en la perforación de pozos petrolíferos
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2695
Class
01
Included in
Harmonised Database (HDB)