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| Patents for Harley Stone | |||||
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| Number | Date | Patentee | Title | Type | |
| 18,324 | Oct. 06, 1857 | J.S. Cole, H. Stone | Saw-filing machine | saw sharpening machines | |
| 22,474 | Dec. 28, 1858 | H. Stone | Expanding bit | drill bits | |