| 385 / | HD | OPTICAL WAVEGUIDES | 
| 53 | DF | WITH DISENGAGABLE MECHANICAL CONNECTOR {4} | 
| 55 | DF | .~ Structure surrounding optical fiber-to-fiber connection {4} | 
| 56 | DF | .~.~ Multi-part (e.g., two pieces screwed together or bayonet latched) {3} | 
| 58 | DF | .~.~.~ With additional structure at or immediately surrounding each optical fiber end face {2} | 
| 60 | DF | .~.~.~.~ Fiber end held in ferrule {6} | 
| 64 |  | .~.~.~.~.~ Plural rods or balls structure |