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| Patents for Abel Greenleaf | |||||
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| Picture | Number | Date | Patentee | Title | |
| 4,954X | Dec. 28, 1827 | H. Amidons, A. Greenleaf | Chisel of mortising machine | ||
| 5,137X | Jun. 05, 1828 | A. Greenleaf | Water wheels for mills | ||
| 6,489X | Apr. 18, 1831 | A. Greenleaf | Rotary steam engine | ||