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| Patents for David Eldridge | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 7,781 | Nov. 19, 1850 | D. Eldridge | Corn-sheller | |
 | 8,978 | Jun. 01, 1852 | D. Eldridge | Corn-sheller | |
 | 30,672 | Nov. 20, 1860 | D. Eldridge | Method of hanging circular saws | |
 | 46,890 | Mar. 21, 1865 | D. Eldridge | Improvement in fly-wheels | |