| All Patents in class 451/308 |
Patents 1 -
7
of 7
      |
| Picture | Number | Date | Patentee | Title |
| | 140,732 | Jul. 08, 1873 | G.L. Rouse | Spoke Polishing Machines |
| | 230,663 | Aug. 03, 1880 | F.A. Savage | Spoke-finishing machine |
 | 250,455 | Dec. 06, 1881 | F.A. Savage | Spoke-finishing machine |
| | 1,060,565 | Apr. 29, 1913 | G.M. Hall | Sanding-machine |
| | 1,144,347 | Jun. 29, 1915 | H. Flick, A.L. Butcher | Automatic spoke-sanding machine |
 | 2,489,811 | Nov. 29, 1949 | H.C. Perkins | Belt polishing and grinding machine |
| | 2,612,007 | Sep. 30, 1952 | R.M. Bell | Abrasive belt attachment for abrasive wheel machines |
