297 / | HD | CHAIRS AND SEATS |
311 | DF | MOVABLE BOTTOM {5} |
340 | DF | .~ Interconnected with back for relative concurrent movement {1} |
341 | DF | .~.~ Back tilts and bottom moves forwardly {1} |
342 | .~.~.~ Rearwardly tilting of back {1} | |
343 | DF | .~.~.~.~> Back slidably connected to back support |