297 / | HD | CHAIRS AND SEATS |
285 | DF | BACK MOVEMENT RESILIENTLY OPPOSED IN OPERATING POSITION {12} |
286 | .~ Resilient support includes armrest {3} | |
287 | DF | .~.~> Integral leg and armrest {1} |
289 | DF | .~.~> Rearward back tilting axially compresses spring |
290 | DF | .~.~> Spring leaf or spring rod armrest |