| 49 / | HD | MOVABLE OR REMOVABLE CLOSURES |
| 149 | DF | MOUNTED FOR OPTIONAL MOVEMENTS {12} |
| 163 | DF | .~ One closure movable separately from or with other closure {4} |
| 164 | DF | .~.~ Closure slide within swingable frame {1} |
| 165 | | .~.~.~ Divided frame with pivoted section |