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| All Patents in class 56/373 | |||||
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| Number | Date | Patentee | Title | Type | |
| 32,350 | May 21, 1861 | E.W. Bullard | Hay Spreader | hay or straw spinners | |
| RE2,992 | Jun. 16, 1868 | E.W. Bullard | Hay Spreader | hay or straw spinners | |
| 111,314 | Jan. 31, 1871 | E.W. Bullard | Hay Tedder | hay or straw spinners | |