Class 037
Construction and Repair Services
Oil and gas well drilling services, excluding consulting services to consumers in the refinery and petrochemical fields and excluding oil and water separation services; the rental and leasing of tools and equipment used in the drilling and servicing of oil and gas wells, excluding oil and water separators and tools and equipment related to oil and water separators or oil and water separation
Class 040
Treatment & Processing of Materials Services
Custom manufacture of oil and gas well drilling tools and drilling equipment for others, excluding oil and water separators and tools and equipment related to oil and water separators or oil and water separation.
Class 042
Computer & Software Services & Scientific Services
Custom design of oil and gas well drilling tools and drilling equipment for others, excluding oil and water separators and tools and equipment related to oil and water separators or oil and water separation.
