| All Patents in class 451/507 |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 142,626 | Sep. 09, 1873 | H.L. Hapgood | Improvement in sandpapering-machines | sanding machines |
| 426,862 | Apr. 29, 1890 | S. Ross, Jr. | Sand-paper roll | sanding machines |
| 431,997 | Jul. 08, 1890 | S. Ross, Jr. | Sand-paper | sanding machines |
| 574,763 | Jan. 05, 1897 | F.A. Rudolph | Dental Tool | dental apparatus |
| 1,839,139 | Dec. 29, 1931 | R.H. Brockman | Lathe Tool Holder | lathe tool holders and tool posts |
| 1,906,190 | Apr. 25, 1933 | H.E. Tautz | Surfacing tool | sanding machines |
| 2,020,219 | Nov. 05, 1935 | J.B. Sirianni | Sanding drum | sanding machines |
| 2,638,722 | May 19, 1953 | I.A. Rimmel | Mandrel | sanding machines |
