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 |