| All Patents in class 29/DIG.86 |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 3,105 | May 26, 1843 | T. Fairbanks | Discharging Dust from Grinding Wheels | grinders |
| 285,123 | Sep. 18, 1883 | J.H. Gowan | Car Wheel Boring and Truing Machine | horizontal boring mills |
| 287,762 | Oct. 30, 1883 | J.H. Gowan | Car Wheel Truing Machine | car wheel lathes |
| 562,268 | Jun. 16, 1896 | F. Ashton | Apparatus for Grinding Parallel Spindles Rods or Shafts | cylindrical grinders |
| 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 | grinders |
