102 / | HD | AMMUNITION AND EXPLOSIVES |
200 | DF | IGNITING DEVICES AND SYSTEMS {15} |
221 | DF | .~ Arming devices {2} |
222 | DF | .~.~ Blocking or interrupting type {7} |
247 | .~.~.~ Inertia operated {3} | |
248 | DF | .~.~.~.~> With or including a timing device {2} |
251 | DF | .~.~.~.~> Rotor or slide with setback release |
252 | DF | .~.~.~.~> Impacting device latch {1} |