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| All Patents in class 416/51 | |||||
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| Number | Date | Patentee | Title | Type | |
| 138,648 | May 06, 1873 | D. Halladay | Wind-Wheels | wind power apparatus | |
| 1,406,427 | Feb. 14, 1922 | G.T. Strite | Fan governor for thrashing machines | threshers and thrashers | |