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 |
| 5490870 | Amalgamable composition and method of production A multi-component composition suitable for amalgamation with mercury to form a dental amalgam, an amalgam and a method for producing such a multi-component composition. The multi-component composition has: from 30 to 90% (by weight) of a first component c... | 02/13/1996 |
| 5354353 | Amalgamable composition and method of production A multi-component composition suitable for amalgamation with mercury to form a dental amalgam, an amalgam and a method for producing such a multi-component composition. The multi-component composition has: from 30 to 90% (by weight) of a first component c... | 10/11/1994 |
| 4664855 | Method for producing amalgamable alloy A process for manufacturing an atomized amalgamable alloy having mold adaptation characteristics superior to other atomized alloys and comparable or better than those for ad-mixed type alloys (alloys which are mixtures of spherical and irregularly shaped ... | 05/12/1987 |
| 4374085 | Silver-tin-copper-palladium alloy and amalgam thereof A silver-tin-copper-palladium alloy containing from 30 to 70% silver, 15 to 37% tin, at least 13% copper and from 0.05 to 0.95% palladium; and an amalgam thereof.... | 02/15/1983 |
| 3980472 | Dental amalgam An improved metal powder blend and improved dental amalgams produced therefrom comprising a mechanical mixture containing controlled proportions of an amalgamatable silver-base alloy powder and a substantially non-amalgamatable eutectic alloy powder conta... | 09/14/1976 |
