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US Trademark Classification

油层和油田勘测 042-144

Chinese 油层和油田勘测
English Surveying of oil beds and fields
Spanish Levantamiento topográfico de yacimientos y yacimientos petrolíferos
Term ID
042-144
Class
42
Type
Services
Status
Active · added, not since modified (A)
Effective date
1991-04-02
Version
07-1997