Podiatry chair having a debris tray slidably positioned adjacent the chair foot section. The debris tray is mounted on and carried by a bracket having a pair of forwardly extending arms having grooves formed therein. Knurled torque knobs are threaded through the bracket arm grooves and are received in...http://www.google.fr/patents/US4852941?utm_source=gb-gplus-shareBrevet US4852941 - Adjustable debris tray assembly for podiatry chairs
Adjustable debris tray assembly for podiatry chairs