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| Patents for William H. Mitchell | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 280,390 | Jul. 03, 1883 | W.H. Mitchell | Divider or Compass | |
 | 286,469 | Oct. 09, 1883 | W.H. Mitchell | Calipers and Dividers | |
 | 372,080 | Oct. 25, 1887 | W.H. Mitchell | Combination Tool | |
| 458,912 | Sep. 01, 1891 | W.H. Mitchell | Saw-mill dog | ||