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| Patents for L. M. Hills | |||||
| Number | Date | Patentee | Title | Type | |
| 40,665 | Nov. 17, 1863 | E. Allen, E.S. Wright | Gun-stock machine | pattern lathes | |
| 40,666 | Nov. 17, 1863 | E. Allen, E.S. Wright | Gun-stock machine | pattern lathes | |
| 40,667 | Nov. 17, 1863 | E.S. Wright, E. Allen | Gun-stock machine | pattern lathes | |