Class 037
Construction and Repair Services
Drilling of wells; heating equipment installation and repair; machinery installation, maintenance and repair; rebuilding motors that have been worn or partially destroyed; rebuilding machines that have been worn or partially destroyed; electric appliance installation and repair; freezing equipment installation and repair; kitchen equipment installation and repair; shipbuilding; rust proofing; painting services; elevator installation and repair; fire alarm installation and repair; burglar alarm installation and repair
Class 039
Transportation & Storage Services
Boat rental; ice-breaking; hauling; salvage of ships; ship brokerage; towing; salvaging; underwater salvage; stevedoring; piloting
Class 042
Computer & Software Services & Scientific Services
Analysis for oil-field exploitation; oil-well testing; geological surveys; oil-field surveys; oil-field prospecting; oil prospecting; geological prospecting; geological research; surveying; chemical analysis; chemistry services; chemical research; land surveying; underwater exploration
