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| Patents for Rufus Augustus Johnson | |||||
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| Number | Date | Patentee | Title | Type | |
| CA-41,697 | Jan. 21, 1893 | R.A. Johnson, B. Gallagher | Saw attachment | railroads | |
| 495,731 | Apr. 18, 1893 | R.A. Johnson, B. Gallagher | Saw attachment | ||