| All Patents in class 451/131 |
Patents 1 -
10
of 13
      |
| Picture | Number | Date | Patentee | Title |
 | 226,273 | Apr. 06, 1880 | J.L. Perry, A. Bridgman | Wood-polishing machines |
 | 273,303 | Mar. 06, 1883 | J.L. Perry | Sanding machine |
 | 287,340 | Oct. 23, 1883 | J.R. Thomas, H.J. Cordesman, F. Danner | Double-drum sand-papering machine |
 | 392,663 | Nov. 13, 1888 | J.E. Carpenter | Wood-polishing machine |
 | 441,633 | Dec. 02, 1890 | A.P. Boardman, J.B. Bennett | Vibrator-attachment for polishing-machines |
| | 444,155 | Jan. 06, 1891 | E.D. Swift | Sandpapering-machine |
 | 445,030 | Jan. 20, 1891 | A.P. Boardman | Polishing-machine |
 | 449,697 | Apr. 07, 1891 | J.L. Perry | Wood-polishing machine |
 | 474,686 | May 10, 1892 | J.L. Perry | Sandpapering-machine |
 | 558,641 | Apr. 21, 1896 | G.A. Ensign | Polishing-machine |
