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| All Patents in class 29/DIG.86 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 3,105 | May 26, 1843 | T. Fairbanks | Discharging Dust from Grinding Wheels | |
| 285,123 | Sep. 18, 1883 | J.H. Gowan | Car Wheel Boring and Truing Machine | ||
| 287,762 | Oct. 30, 1883 | J.H. Gowan | Car Wheel Truing Machine | ||
| 562,268 | Jun. 16, 1896 | F. Ashton | Apparatus for Grinding Parallel Spindles Rods or Shafts | ||
| 1,261,156 | Apr. 02, 1918 | C.H. Norton | Belt Drive for Grinding Machines | ||
| 2,219,444 | Oct. 29, 1940 | R.E. Grobe, T.F. Eserkaln | Grinding Wheel Dust Hood | ||