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| Patents for John Rickard Thomas | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 639,315 | Dec. 19, 1899 | J.R. Thomas | Feeding device for planing-machines | |
 | 645,577 | Mar. 20, 1900 | J.R. Thomas, H.S. Spencer | Planing-machine | |
 | 645,578 | Mar. 20, 1900 | J.R. Thomas | Abrading-machine | |
 | 646,511 | Apr. 03, 1900 | J.R. Thomas | Abrading-cylinder | |
 | 649,085 | May 08, 1900 | J.R. Thomas | Planing-machine | |