| Class | Class Name |
|---|---|
| 12 | delivery tricycles |
| 12 | delivery vans |
| 12 | derailleurs for bicycles |
| 12 | differentials for land vehicles |
| 12 | dining carriages |
| 12 | dining cars |
| 12 | direction indicator signals for cycles |
| 12 | direction indicators for vehicles |
| 12 | dirigible balloons |
| 12 | disc brake rotors for vehicle braking systems |
| 12 | disengaging gear for boats |
| 12 | diving bells |
| 12 | dollies |
| 12 | doors for vehicles |
| 12 | drawbars for trailers |
| 12 | dredgers |
| 12 | dredgers [boats] |
| 12 | dress guards for bicycles |
| 12 | dress guards for bicycles |
| 12 | drive shafts for land vehicles |
| 12 | driverless cars [autonomous cars] |
| 12 | driving chains for land vehicles |
| 12 | driving motors for land vehicles |
| 12 | ejector seats for aircraft |
| 12 | electric bicycles |
| 12 | electric driving motors for land vehicles |
| 12 | electric engines for land vehicles |
| 12 | electric horns for vehicles |
| 12 | electric motors for land vehicles |
| 12 | electric motors for wheelchairs |
| 12 | electric sunroofs for vehicles |
| 12 | electric trolley buses |
| 12 | electric vehicles |
| 12 | electrically operated scooters |
| 12 | electrically operated wheelchairs |
| 12 | electrically powered scooters |
| 12 | elevating tailgates [parts of land vehicles] |
| 12 | engine mounts for land vehicles |
| 12 | engines for automobiles |
| 12 | engines for land vehicles |
| 12 | fan motors for land vehicles |
| 12 | fenders for ships |
| 12 | fenders for water vehicles |
| 12 | ferry boats |
| 12 | filler caps for vehicle fuel tanks |
| 12 | fishing boats |
| 12 | fishing trolleys |
| 12 | fitted footmuffs for baby carriages |
| 12 | fitted footmuffs for prams |
| 12 | fitted footmuffs for pushchairs |
