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| Patents for Abel Downs | |||||
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| Number | Date | Patentee | Title | Type | |
| 8,206 | Jul. 08, 1851 | J.W. Wheeler, B. Holly | Machine for grooving lumber | dado machines | |
| 8,730 | Feb. 10, 1852 | B. Holly | Railroad Car Brake | railroad car brakes | |