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| Patents for Henry A. Mitchell | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 32,347 | May 21, 1861 | H.S. Bartholomew | Improvement in Ball-Braces | |
 | 121,895 | Dec. 12, 1871 | R. Porter | Bench Vise | |
 | RE7,263 | Aug. 15, 1876 | W.H. Barber | Improvements in Devices for Holding Bits and Other Tools ... | |
| 732,649 | Jun. 30, 1903 | H.A. Mitchell | Sawmill | ||