434 / | HD | EDUCATION AND DEMONSTRATION |
11 | DF | ORGANIZED ARMED OR UNARMED CONFLICT OR SHOOTING {5} |
16 | DF | .~ Gunnery {4} |
19 | DF | .~.~ Gun aiming {3} |
21 | .~.~.~ Training apparatus using beam of infrared, visible light, or ultraviolet radiation {1} | |
22 | DF | .~.~.~.~> Beam sensor included in apparatus |