...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 |
| 5619731 | Interactive music CD and data Both interactively-selectable information and audio information are recorded on a compact disc medium. The music is recorded in Red Book format on the disc in a normal way so that it is reproducible by a standard CD player. The Red Book information is als... | 04/08/1997 |