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| Patents for Alfred Hudson | |||||
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| Number | Date | Patentee | Title | Type | |
| 448,868 | Mar. 24, 1891 | E.N. Wickes | Winding-drum | hoists, winches, come-alongs | |
| 468,659 | Feb. 09, 1892 | E. Heyde | Bending-roll | metal bending machines | |