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| All Patents in class 451/172 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 78,215 | May 26, 1868 | J.S. Loomis | Improvement in machines for polishing wood | |
 | 152,393 | Jun. 23, 1874 | W.F. Brenizer, P. McBride | Improvement in sandpapering-machines | |
 | 165,073 | Jun. 29, 1875 | J.A. Dayton | Improvement in machines for polishing moldings | |
| 455,131 | Jun. 30, 1891 | A.W. Street | Sanding machine | ||
| 1,286,697 | Dec. 03, 1918 | H.E. Manofsky | Sanding-machine | ||
| 4,558,537 | Dec. 17, 1985 | R.B. MacLeod | Centerless Honing Machines Having Automatic Size Control | ||