| 359 / | HD | OPTICS: SYSTEMS (INCLUDING COMMUNICATION) AND ELEMENTS |
| 838 | DF | MIRROR {14} |
| 871 | DF | .~ With support {3} |
| 872 | DF | .~.~ Mirror movable relative to support {6} |
| 877 | ![]() | .~.~.~ With switch or motor controlling mirror movement {1} |
| 878 | DF | .~.~.~.~> Fluid pressure actuated |