"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 |
| 6655051 | Appliance for protecting against the effects of explosive devices An appliance for protecting the bottom end of a human lower limb, and in particular the foot, from propagation of the blast wave and the heat generated by an explosive device of the mine type exploding. The invention provides an ammunition type boot whose... | 12/02/2003 |