| 169 / | HD | FIRE EXTINGUISHERS |
| 30 | DF | PORTABLE VESSELS {5} |
| 71 | DF | .~ Gas pressure {9} |
| 85 | ![]() | .~.~ Pressurizing agent stored apart from agent {3} |
| 86 | DF | .~.~.~> With means to prevent freezing of expanding gas |
| 87 | DF | .~.~.~> Vessel inverted to release gas |
| 88 | DF | .~.~.~> Lever or trigger operated to release gas |