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| Patents for Robert Hancock Sr. | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,430X | Feb. 06, 1811 | E.W. Carr, R. Hancock, Sr. | Cotton gin | cotton gins | |
| 1,455X | Mar. 01, 1811 | R. Hancock, Sr., E.W. Carr | Machine for cutting wooden screws | wood threading machines | |