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| Number | Title | Issue Date |
| 7316252 | Modular tire A device for serving as a wheel for motor vehicles, where the wheel has its tire tread replaceable when it is worn out via unique rims and molded tire features. An alternate internal structure prevents the tire from “going flat” or “blowing out” when it is p... | 01/08/2008 |
| 6615888 | Variable-diameter wheel-and-tire apparatus for motor vehicles A wheel-and-tire apparatus has a pneumatic tire with two or more circumferential tread sections, the relative diameters of which may be adjusted to select the tread sections in contact with the road. The tire may have one or more air chambers. The apparat... | 09/09/2003 |
