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| Patents for H. A. Pitts' Sons Mfg. Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 202,862 | Apr. 23, 1878 | M.H. Pitts | Mounted Horse-Power | animal powered apparatus | |
| 202,863 | Apr. 23, 1878 | M.H. Pitts | Grain Separator | corn and grain separators | |