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| Patents for William Whittemore Jr. | |||||
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| Number | Date | Patentee | Title | Type | |
| 7,496X | Mar. 21, 1833 | W. Whittemore, W. Whittemore, Jr. | Separating cotton seed by a roller gin | cotton gins | |
| 8,049X | Mar. 07, 1834 | W. Whittemore, Jr. | Cotton roller-gin | cotton gins | |
| 8,857X | May 29, 1835 | W. Whittemore, Jr. | Cotton roller gin | cotton gins | |