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| All Patents in class 212/247 | |||||
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| Number | Date | Patentee | Title | Type | |
| 143,974 | Oct. 28, 1873 | L.R. Faught | Improvement in horse-powers | animal powered apparatus | |
| 933,124 | Sep. 07, 1909 | W.T. Sears | Car-wheel drilling machine | drill presses | |
| 1,254,282 | Jan. 22, 1918 | J.J. Schulz | Portable Crane | cranes | |