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A gas lift chair is a form of office chair that allows the user to modify their height in relation to the height of a desk, leading to an increase in comfort and ergonomic benefit.
A patent describing a common configuration of a gas lift cylinder by John Wang, published 20 May 1989:
http://www.google.co.uk/patents/US4833973
Video Gas lift chair
See also
- Lift chair
Maps Gas lift chair
References
Source of article : Wikipedia