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"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 |
| 6983774 | Tire reinforcing arrangement A tire reinforcing arrangement includes an outer tire having two hooked flanges at two sides, two annular spare tires bilaterally set inside the outer tire, each annular spare tire being formed of a plurality of spare tire blocks that are fastened to one another by ... | 01/10/2006 |
| 6303060 | Method of making non-deflatable tire and wheel assembly In a preferred embodiment, the invention is a non-deflatable tire assembly having a hollow toroid-shaped flanged insert, a flexible body molded around the insert to form a tire, and at least one rim onto which is mounted the tire. The flange of the insert... | 10/16/2001 |
