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| Patents for Albert H. Richardson | |||||
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| Number | Date | Patentee | Title | Type | |
| 424,025 | Mar. 25, 1890 | A.H. Richardson | Machine for sharpening cutting-tools | sharpening machines | |
| 633,620 | Sep. 26, 1899 | E.M. Smith | Tool Holding Device | screwdrivers | |