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| Patents for John T. Hancock | |||||
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| Number | Date | Patentee | Title | Type | |
| 10,242 | Nov. 15, 1853 | J.E. Warner | Machine for finishing the ends of staves | barrel making machines | |
| 185,861 | Jan. 02, 1877 | J.T. Hancock | Inspirator | feedwater apparatus | |