Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 4311211 | Service system A typical embodiment of the invention described herein discloses a prepared and packaged food delivery system that permits one attendant to serve several car ports. An electrically driven carrier for transporting a gimballed tray for money and foodstuffs ... | 01/19/1982 |
| 4015537 | Interior railway transportation system A self-propelled car and load-conveying container on the car travel along a track system having horizontal and vertical track runs with bends or curves between such runs, and having inside and outside corner bends or curves between horizontal track runs .... | 04/05/1977 |
