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| Patents for L. F. Warren | |||||
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| Number | Date | Patentee | Title | Type | |
| AI2 | Jan. 23, 1838 | S. Day | Improvement on His Improved Self-Loading and Priming Fire-Arms | rifles | |
| 684 | Apr. 07, 1838 | T. Burdick, F. Burdick | Machine for mortising timber, &c. | mortising machines | |