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US Trademark Classification

Drilling of wells 037-670

钻井

Chinese 钻井
English Drilling of wells
Spanish Perforación de pozos
Term ID
037-670
Class
37
Type
Services
Status
Active · added, not since modified (A)
Effective date
2007-11-22
Version
09-2007

Corresponding item in the CNIPA Table of Similar Goods and Services: 钻井(370114) similar group 3703

Matched automatically by Nice class and official English term; rely on each office's official text before filing.