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| Patents for John Boynton | |||||
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| Picture | Number | Date | Patentee | Title | |
| 1,482X | Mar. 30, 1811 | J. Boynton | Machine for stringing and grinding cards | ||
| 5,447X | Apr. 11, 1829 | J. Boynton | Double Doffer for Sorting and Carding Wool | ||
| 5,566X | Jul. 10, 1829 | J. Boynton | Casting of Iron Ploughs in one Entire Piece | ||
| 7,477X | Mar. 11, 1833 | J. Boynton | Carding wool | ||
| 525,780 | Sep. 11, 1894 | J. Boynton | Mechanism for Taking Up Lost Motion | ||