| 2/00 | Fire prevention or containment (A62C 3/00 takes precedence; flame traps A62C 4/00) |
| 2/04 | Fire prevention or containment (A62C 3/00 takes precedence; flame traps A62C 4/00) Removing or cutting-off the supply of inflammable material |
| 2/06 | Fire prevention or containment (A62C 3/00 takes precedence; flame traps A62C 4/00) Physical fire-barriers |
| 2/08 | Fire prevention or containment (A62C 3/00 takes precedence; flame traps A62C 4/00) Physical fire-barriers Water curtains (nozzles A62C 31/02) |
| 2/10 | Fire prevention or containment (A62C 3/00 takes precedence; flame traps A62C 4/00) Physical fire-barriers Fire-proof curtains |
| 2/12 | Fire prevention or containment (A62C 3/00 takes precedence; flame traps A62C 4/00) Physical fire-barriers Hinged dampers |
| 2/14 | Fire prevention or containment (A62C 3/00 takes precedence; flame traps A62C 4/00) Physical fire-barriers Hinged dampers with two or more blades |
| 2/16 | Fire prevention or containment (A62C 3/00 takes precedence; flame traps A62C 4/00) Physical fire-barriers Hinged dampers with two or more blades multi-vane roll or fold-up type |
| 2/18 | Fire prevention or containment (A62C 3/00 takes precedence; flame traps A62C 4/00) Physical fire-barriers Sliding dampers |
| 2/20 | Fire prevention or containment (A62C 3/00 takes precedence; flame traps A62C 4/00) Physical fire-barriers Sliding dampers at 90 degrees to the plane of the opening |
| 2/22 | Fire prevention or containment (A62C 3/00 takes precedence; flame traps A62C 4/00) Physical fire-barriers Fire-dampers with provision for the removal of an obstacle, e.g. rails, conveyers, before closing the opening |
| 2/24 | Fire prevention or containment (A62C 3/00 takes precedence; flame traps A62C 4/00) Physical fire-barriers Operating or controlling mechanisms |
| 3/00 | Fire prevention, containment or extinguishing specially adapted for particular objects or places (for nuclear reactors G21C 9/04) |
| 3/02 | Fire prevention, containment or extinguishing specially adapted for particular objects or places (for nuclear reactors G21C 9/04) for area conflagrations, e.g. forest fires, subterranean fires |
| 3/04 | Fire prevention, containment or extinguishing specially adapted for particular objects or places (for nuclear reactors G21C 9/04) for dust or loosely-baled or loosely-piled materials, e.g. in silos, in chimneys (flame traps A62C 4/00) |
| 3/06 | Fire prevention, containment or extinguishing specially adapted for particular objects or places (for nuclear reactors G21C 9/04) of highly inflammable material, e.g. light metals, petroleum products |
| 3/07 | Fire prevention, containment or extinguishing specially adapted for particular objects or places (for nuclear reactors G21C 9/04) in vehicles, e.g. in road vehicles |
| 3/08 | Fire prevention, containment or extinguishing specially adapted for particular objects or places (for nuclear reactors G21C 9/04) in vehicles, e.g. in road vehicles in aircraft |
| 3/10 | Fire prevention, containment or extinguishing specially adapted for particular objects or places (for nuclear reactors G21C 9/04) in vehicles, e.g. in road vehicles in ships |
| 3/16 | Fire prevention, containment or extinguishing specially adapted for particular objects or places (for nuclear reactors G21C 9/04) in electrical installations, e.g. cableways |
