| Class | Class Name |
|---|---|
| 37 | repair or maintenance of brakes (for land vehicles) |
| 37 | repair or maintenance of burners |
| 37 | repair or maintenance of car parking system |
| 37 | repair or maintenance of cars |
| 37 | repair or maintenance of cash recycling modules |
| 37 | repair or maintenance of circuit boards |
| 37 | repair or maintenance of coin-operated lockers |
| 37 | repair or maintenance of computer terminals |
| 37 | repair or maintenance of cooking heaters |
| 37 | repair or maintenance of electric communication machines and apparatus |
| 37 | repair or maintenance of electric door openers |
| 37 | repair or maintenance of electronic door opening and closing systems |
| 37 | repair or maintenance of electronic machines and apparatus |
| 37 | repair or maintenance of electronic machines and apparatus and their parts |
| 37 | repair or maintenance of elevators |
| 37 | repair or maintenance of fishing machines and apparatus |
| 37 | repair or maintenance of freezing machinery and apparatus |
| 37 | repair or maintenance of fuel pumps |
| 37 | repair or maintenance of glassware manufacturing machines and apparatus |
| 37 | repair or maintenance of hydraulic or pneumatic door openers and closers |
| 37 | repair or maintenance of laboratory apparatus and instrument |
| 37 | repair or maintenance of loading-unloading machines and apparatus |
| 37 | repair or maintenance of locks |
| 37 | repair or maintenance of machine-operated parking lots |
| 37 | repair or maintenance of machines and apparatus for lumbering, woodworking, or veneer and plywood making |
| 37 | repair or maintenance of machines and apparatus for medical purposes |
| 37 | repair or maintenance of measuring devices and testing apparatus and instruments |
| 37 | repair or maintenance of measuring devices and testing equipment and instruments |
| 37 | repair or maintenance of measuring or testing machines and instruments |
| 37 | repair or maintenance of medical machines and apparatus |
| 37 | repair or maintenance of metal sliding door pulleys or rollers |
| 37 | repair or maintenance of metalworking machines and tools |
| 37 | repair or maintenance of money changing machines |
| 37 | repair or maintenance of motorcycles |
| 37 | repair or maintenance of motors |
| 37 | repair or maintenance of oil hydraulic motors |
| 37 | repair or maintenance of oil hydraulic pumps |
| 37 | repair or maintenance of oil water heaters for household purposes |
| 37 | repair or maintenance of opthalmological machines |
| 37 | repair or maintenance of optical apparatus and instruments |
| 37 | repair or maintenance of passbook/certificate issuing machines |
| 37 | repair or maintenance of plastic processing machineries |
| 37 | repair or maintenance of printers |
| 37 | repair or maintenance of pumps |
| 37 | repair or maintenance of radio or television sets |
| 37 | repair or maintenance of remote control systems for vessel propelling engines |
| 37 | repair or maintenance of remote controllers |
| 37 | repair or maintenance of safes |
| 37 | repair or maintenance of scanners |
| 37 | repair or maintenance of self check-in machines |
