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 |
| 6934488 | Method and apparatus for reassembling a toner cartridge In the toner cartridge recycling and remanufacturing industry, used xerographic toner cartridges are reconditioned and refilled with toner. There are various types and models of toner cartridges, each having unique physical properties. The present invention is direc... | 08/23/2005 |
| 6801734 | Method and apparatus for reassembling a toner cartridge In the toner cartridge recycling and remanufacturing industry, used xerographic toner cartridges are reconditioned and refilled with toner. There are various types and models of toner cartridges, each having unique physical properties. The present invention is direc... | 10/05/2004 |