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| Patents for Ella Johnson | |||||
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| Number | Date | Patentee | Title | Type | |
| 334,285 | Jan. 12, 1886 | T.J. Reamy | Feed mechanism for sawmills | sawmill feed works | |
| 401,452 | Apr. 16, 1889 | L.H. Nash | Fuel Mixing Device for Gas Engines | carburetors | |