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| Patents for E. A. Pray | |||||
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| Number | Date | Patentee | Title | Type | |
| 36,903 | Nov. 11, 1862 | W.S. Hadley | Tapping Guide | tool holders | |
| RE2,045 | Aug. 01, 1865 | A.E. Warner, I.V. Warner | Improvement in sawing-machines | drag saws | |