"Rail travel at high speeds is not possible because passengers, unable to breathe, would die of asphyxia."
Dionysius Lardner, Professor of Natural Philosophy and Astronomy at University College, London ; 1830
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| Number | Title | Issue Date |
| 6503188 | Rollable health care displays A rollable visual display is used in a room containing an article of furniture adapted to support a person, such as a bed or chair, wherein the room has a visual display support structure facing the article of furniture within the room. The visual display... | 01/07/2003 |
| 5771510 | Bed with movable bedposts A bed with movable bedposts mainly including a bed plank which cooperates with two sliding rails, two sliding rail bearings with extended plates, two steel cords, a fixing member, and a motor and transmission gears and chain to move two bedposts relative ... | 06/30/1998 |