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| Patents for J. B. Crandall | |||||
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| Number | Date | Patentee | Title | Type | |
| 78,309 | May 26, 1868 | C.G. Miller | Improvement in bench-drills | drill presses | |
| 88,893 | Apr. 13, 1869 | C.G. Miller | Improvement in saw-filing machines | saw sharpening machines | |