This invention relates to a chair to be used by workers such as programmers who spend long periods of time in {TAIL ~ chairs} and particularly to a chair that provides {HEAD ~ knee restraints} together with lower back restraint that relieve strain on the back 
This invention relates to a chair to be used by workers such as programmers who spend long periods of time in { TAIL ~ chairs } and particularly to a chair that provides { HEAD ~ knee restraints } together with lower back restraint that relieve strain on the back
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