182 / | HD | FIRE ESCAPE, LADDER, OR SCAFFOLD |
70 | DF | WITH STORAGE DEVICE FOR SUPPLE ESCAPE {4} |
73 | DF | .~ Reel {2} |
236 | DF | .~.~ With means for retarding unwinding of strand type escape {4} |
240 | .~.~.~ Friction brake and occupant-operated mechanism for applying brake during descent |