The first match was accidentally discovered in 1826 when John Walker scraped a stick with chemicals on the end against a stone floor.
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| Number | Title | Issue Date |
| 7445807 | Agglomerated granular protein-rich nutritional supplement A agglomerated granular protein-rich nutritional supplement includes a mixture of one or more of: edible nutritional food proteins; edible carbohydrates; edible fats; edible dietary vitamins and minerals; edible amino acids; and edible plant extracts, where the nutr... | 11/04/2008 |
| 7041305 | Stable water in oil aminophylline emulsions A water in oil emulsion system and a process for preparing such a emulsion has been provided for topically applying aminophylline for reducing cellulite conditions. ... | 05/09/2006 |