| B | SK | PERFORMING OPERATIONS; TRANSPORTING |
| B63 | KL | SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT |
| B63J | UKL | AUXILIARIES ON VESSELS |
| B63J 1/00 | HGR | Arrangements of installations for producing fresh water, e.g. by evaporation and condensation of sea water |
| B63J 2/00 | HGR | Arrangements of ventilation, heating, cooling, or air-conditioning (for vehicles in general B60H; ventilating for cleaning tanks B63B 57/04; for underwater vessels, e.g. submarines, B63G 8/36) |
| B63J 2/02 | UGR1 | | . | Ventilation; Air-conditioning |
|
| B63J 2/04 | UGR2 | |
| B63J 2/06 | UGR2 | |
| B63J 2/08 | UGR2 | | . . | of holds (heating or cooling of liquid-freight-carrying tanks B63J 2/14; arrangements for stowing frozen goods in vessels B63B 25/26) |
|
| B63J 2/10 | UGR2 | | . . | Ventilating-shafts; Air-scoops (for port-holes B63B 19/04) |
|
| B63J 2/12 | UGR1 | |
| B63J 2/14 | UGR2 | | . . | of liquid-freight-carrying tanks |
|
| B63J 3/00 | HGR | Driving of auxiliaries (transmission elements per se F16) |
| B63J 3/02 | UGR1 | | . | from propulsion power plant |
|
| B63J 3/04 | UGR1 | | . | from power plant other than propulsion power plant |
|
| B63J 4/00 | HGR | Arrangements of installations for treating waste-water or sewage (soil-water discharges B63B 29/16) [3] |
| B63J 5/00 | HGR | Vessel auxiliaries, not otherwise provided for |