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 |