| 124 / | HD | MECHANICAL GUNS AND PROJECTORS |
| 56 | DF | FLUID PRESSURE {9} |
| 71 | DF | .~ With control for discharge of fluid pressure {2} |
| 73 | ![]() | .~.~ By valve means {4} |
| 74 | DF | .~.~.~> For discharge of pressure from removably mounted cartridge |
| 75 | DF | .~.~.~> Opened by fluid pressure-actuated means |
| 76 | DF | .~.~.~> Opened by spring-actuated means |
| 77 | DF | .~.~.~> Opened by electrically actuated means |