|  | A |
SECTION A — HUMAN NECESSITIES

HEALTH AND AMUSEMENT

|  | A62 |
LIFE-SAVING; FIRE-FIGHTING (ladders Fulltext... Hierarchy... Expanded...E06C)

|  | A62B |
DEVICES, APPARATUS AND METHODS FOR LIFE-SAVING (specially adapted for use in water Fulltext... Hierarchy... Expanded...B63C 9/00; specially adapted for use with aircraft, e.g. parachutes, ejector seats Fulltext... Hierarchy... Expanded...B64D; rescue devices peculiar to mining Fulltext... Hierarchy... Expanded...E21F 11/00)

|  | A62C |
FIRE-FIGHTING (chemical aspects Fulltext... Hierarchy... Expanded...A62D; spraying, applying liquids to surfaces in general Fulltext... Hierarchy... Expanded...B05)

|  | A62D |
CHEMICAL MEANS FOR EXTINGUISHING FIRES, OR COMBATING OR PROTECTING AGAINST CHEMICAL WARFARE AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS