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 |
| 6848386 | Underwater weapon system having a rotatable gun An underwater weapon system having a housing formed by first and second halves thereof sandwiched about a gun system that is rotatably mounted to and between the first and second halves. The gun system includes a gun and ammunition sealed within a waterproof housing... | 02/01/2005 |
| 5265549 | Hydro-propelled ship A hydro-propelled ship is provided which consists of a hull having a double wall, so as to float on a top surface of a body of water. A pair of propulsion turbines are each affixed to a starboard side and a port side of the hull of the ship in a catamaran... | 11/30/1993 |
