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| Patents for I. A. Ellsworth | |||||
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| Number | Date | Patentee | Title | Type | |
| 916,740 | Mar. 30, 1909 | L. Lucas | Sanding-machine | sanding machines | |
| 1,000,296 | Aug. 08, 1911 | J.A. Sagerdahl | Sanding-machine | sanding machines | |
| 1,023,959 | Apr. 23, 1912 | K. Peterson | Sector Cutting Saw | making wrenches | |
| 1,036,250 | Aug. 20, 1912 | J.E. Johnson | Nurling Machine | ||