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 |
| 7592352 | Substituted thieno and furo-pyridines This invention relates to newly identified compounds for treating and preventing tumors and cancers, and methods for treating proliferative diseases associated with the imbalance or inappropriate activity of tyrosine kinases implicated in proliferative diseases.... | 09/22/2009 |