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| Patents for Empire Works (Concord, NH) | |||||
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| Number | Date | Patentee | Title | Type | |
| 152,033 | Jun. 16, 1874 | A. Bean | Improvement in portable furnaces | stoves | |
| 155,359 | Sep. 29, 1874 | A. Bean | Improvement in planing-machines | wood planers | |
| 298,056 | May 06, 1884 | A. Bean | Combination scroll saw, bandsaw, circular saw | bandsaws | |