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| Patents for A. H. Stevens | |||||
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| Number | Date | Patentee | Title | Type | |
| 5,796X | Jan. 27, 1830 | A.H. Stevens | Forming hat bodies | milliner | |
| 5,569 | May 16, 1848 | A.H. Stevens | Corn Sheller | corn shellers | |
| 14,745 | Apr. 22, 1856 | A.H. Stevens | Corn Sheller | corn shellers | |
| GB-415,583 | Aug. 30, 1934 | A.H. Stevens | Improvements in or Relating to Gear Lapping Machines | gear lapping machines | |