| All Patents in class 29/33A |
Patents 1 -
4
of 4
      |
| Number | Date | Patentee | Title | Type |
| 1,783,121 | Nov. 25, 1930 | J.H. Hoern | Piston Ring Burr Removing Device | surface grinders |
| 2,807,974 | Oct. 01, 1957 | H.J. Siekmann, W.H. Meyer, administrator, W.R. Meyer, deceased (estate of) | Automatic Bearing Lathe | crankshaft lathes |
| 3,418,757 | Dec. 31, 1968 | J. McEwan | Lawn mower sharpener | |
| 6,375,397 | Apr. 23, 2002 | H.K. Lotz | Continuous Steel Casting Installation with Deburrer for Cutting Burrs and Cutting Beads on Slabs, Blooms and Billets | deburring apparatus |
