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| Number | Title | Issue Date |
| 6772997 | Self-propelled crawler for lifting, servicing, and moving automobiles A system for servicing a racing car or other car at a track, other race course, or similar destination employs an open platform for supporting the car by its tires in a horizontal position. The platform supports the car, and is itself supported by a crawler, in a ca... | 08/10/2004 |
| 6612152 | Lifting, servicing, and diagnosing automobiles A system for servicing a racing car or other car at a track, other race course, or similar destination employs an open platform for supporting the car by its tires in a horizontal position. The platform supports the car, and is itself supported by a crawl... | 09/02/2003 |
