385 / | HD | OPTICAL WAVEGUIDES |
53 | DF | WITH DISENGAGABLE MECHANICAL CONNECTOR {4} |
55 | DF | .~ Structure surrounding optical fiber-to-fiber connection {4} |
70 | DF | .~.~ With additional structure at or immediately surrounding each optical fiber end face {2} |
72 | .~.~.~ Fiber end held in ferrule |