| 1/00 | Devices using naturally-cold air or water |
| 1/02 | Devices using naturally-cold air or water using naturally-cold water, e.g. household-tap water |
| 3/00 | Devices using other cold materials; Devices using cold-storage bodies |
| 3/02 | Devices using other cold materials; Devices using cold-storage bodies using ice, e.g. ice-boxes |
| 3/04 | Devices using other cold materials; Devices using cold-storage bodies using ice, e.g. ice-boxes Stationary cabinets |
| 3/06 | Devices using other cold materials; Devices using cold-storage bodies using ice, e.g. ice-boxes Movable containers |
| 3/08 | Devices using other cold materials; Devices using cold-storage bodies using ice, e.g. ice-boxes Movable containers portable, i.e. adapted to be carried personally |
| 3/10 | Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air |
| 3/11 | Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air with conveyers carrying articles to be cooled through the cooling space |
| 3/12 | Devices using other cold materials; Devices using cold-storage bodies using solidified gases, e.g. carbon-dioxide snow |
| 3/14 | Devices using other cold materials; Devices using cold-storage bodies using solidified gases, e.g. carbon-dioxide snow portable, i.e. adapted to be carried personally |
| 5/00 | Devices using endothermic chemical reactions, e.g. using frigorific mixtures |
| 5/02 | Devices using endothermic chemical reactions, e.g. using frigorific mixtures portable, i.e. adapted to be carried personally |
| 7/00 | Devices using evaporation effects without recovery of the vapour (butter or cheese dishes with cooling devices A47G 19/26) |
| 9/00 | Devices not associated with refrigerating machinery and not covered by groups F25D 1/00-F25D 7/00; Combinations of devices covered by two or more of the groups F25D 1/00-F25D 7/00 |
| 11/00 | Self-contained movable devices associated with refrigerating machinery, e.g. domestic refrigerators |
| 11/02 | Self-contained movable devices associated with refrigerating machinery, e.g. domestic refrigerators with cooling compartments at different temperatures |
| 11/04 | Self-contained movable devices associated with refrigerating machinery, e.g. domestic refrigerators specially adapted for storing deep-frozen articles (F25D 11/02 takes precedence) |
| 13/00 | Stationary devices associated with refrigerating machinery, e.g. cold rooms |
| 13/02 | Stationary devices associated with refrigerating machinery, e.g. cold rooms with several cooling compartments, e.g. refrigerated locker systems |