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| Patents for A. De Lacy | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 41,034 | Dec. 22, 1863 | H.S. Vrooman | Improvement machines for sawing irregular forms | |
 | 44,037 | Aug. 30, 1864 | A.R. Arnold | Improved machine for making twist-drills | |
 | 44,724 | Oct. 18, 1864 | H.A. Harvey | Improvement in Files | |
 | 72,636 | Dec. 24, 1867 | W.C. Hicks | Grinding and Polishing Concave Surfaces | |
 | 74,097 | Feb. 04, 1868 | D. Kennedy | Improvement in chain-saws | |