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| Patents for I. Dennis Jr. | |||||
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| Number | Date | Patentee | Title | Type | |
| 10,464 | Jan. 24, 1854 | S.S. Bartlett, J.E. Brown | Mortising-machine | mortising machines | |
| 11,444 | Aug. 01, 1854 | J. Stull | Circular sawmill | circular sawmills | |
| 12,429 | Feb. 20, 1855 | J. Peirson | Machine for manufacturing hoops | hoop making machines | |
| 18,612 | Nov. 10, 1857 | J. Thrasher | Clamp for Boring Hubs | wheelwright | |
| 20,344 | May 25, 1858 | N.J. Glover | Machine for turning irregular forms | pattern lathes | |