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| Patents for John Matthews | |||||
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| Number | Date | Patentee | Title | Type | |
| 633X | Aug. 13, 1805 | J. Matthews | Machine for grinding and sawing dye woods | wood grinding machines | |
| 719X | Feb. 06, 1807 | J. Matthews | Grinding, sawing, and rasping dye woods | wood grinding machines | |