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| All Patents in class 451/295 | |||||
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| Number | Date | Patentee | Title | Type | |
| 453,616 | Jun. 09, 1891 | A.E. Brown | Driver for Lathes or Planing Machines | metal lathe accessories and attachments | |
| 2,114,349 | Apr. 19, 1938 | A.M. Johnson | Honing machine | honing machines | |
| 2,545,453 | Mar. 20, 1951 | F.P. Forss | Portable rotary grinder or die filer | handheld power tools | |
| 2,641,874 | Jun. 16, 1953 | R.G. Kirby | Grinding Machine | cam grinding machines | |
| 3,913,277 | Oct. 21, 1975 | R.P. Lindsay, R.S. Hahn | Grinding Machine | grinding machines | |