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| Patents for E. P. Hotchkiss | |||||
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| Number | Date | Patentee | Title | Type | |
| 79,255 | Jun. 23, 1868 | A. Shepard, A.P. Plant | Nut Machine | nut or bolt making machines | |
| 357,433 | Feb. 08, 1887 | W.S. Ward | Lifting device for drop-hammers | drop hammers | |