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 |
| 4885836 | Riveting process and apparatus Improved process and apparatus for assembling component parts by means of rivets or similar fasteners in which computer controlled robotic machining centers present selected tools in predetermined special position on opposing sides of the components which... | 12/12/1989 |