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US Trademark Classification

Water or oil well boring 037-33

水井或油井钻凿

Chinese 水井或油井钻凿
English Water or oil well boring
Spanish Perforación de pozos de agua o petróleo
Term ID
037-33
Class
37
Type
Services
Status
Active · added, not since modified (A)
Effective date
1991-04-02
Version
07-1997