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| Number | Title | Issue Date |
| 6964309 | Vehicle with compliant drive train A vehicle that is propelled by as few as one actuator through a compliant drive train can move quickly on relatively smooth terrain and can climb obstacles. The body of the vehicle may consist of a single segment or multiple segments connected by articulating joints... | 11/15/2005 |
| 4909972 | Method and apparatus for making a solid foamed tire core A method of making a solid core locatable between a wheel rim and a tire fitted to the rim, includes introducing a foamable composition into a mould cavity having a substantially inflexible mould surface. The cavity is suitably shaped so that a core locat... | 03/20/1990 |
