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 |
| 6167600 | Columbarium system A columbarium system for the storage of human remains that includes a plurality of similarly configured storage containers is disclosed. The storage container has walls that define an enclosure having an opening at one end with a mounting plate attached t... | 01/02/2001 |