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| Number | Title | Issue Date |
| 6725895 | Wheel A wheel has a rigid rim, a soft tire arranged on the rigid rim, and a unit for generating different pressures from inside in the soft tire in contact zone of tire with road surface, at opposite sides of a vertical transverse plane of symmetry of the rim so as to cau... | 04/27/2004 |
| 4570691 | Tire pressure regulation system A vehicle wheel-tire assembly wherein the tire has a low inflation pressure (large tire footprint) in a low vehicle speed range, and a large inflation pressure (small tire footprint) in a high vehicle speed range. The tire is partitioned into a series of ... | 02/18/1986 |
