| Patents for Berlin Machine Works |
Patents 1 -
10
of 77
      |
| Picture | Number | Date | Patentee | Title |
 | 226,273 | Apr. 06, 1880 | J.L. Perry, A. Bridgman | Wood-polishing machines |
 | 240,179 | Apr. 12, 1881 | J.L. Perry | Sanding machine |
 | 273,304 | Mar. 06, 1883 | J.L. Perry | Abrading cutter-head |
 | 285,666 | Sep. 25, 1883 | J.L. Perry | Abrading-cylinder |
 | 352,988 | Nov. 23, 1886 | J. Challoner, A. Bridgman | Drum sander |
 | 392,663 | Nov. 13, 1888 | J.E. Carpenter | Wood-polishing machine |
 | 399,629 | Mar. 12, 1889 | J.L. Perry | Polishing-cylinder |
 | 416,801 | Dec. 10, 1889 | O.B. Osborn, E.G. Richards | Wood-polishing machine |
 | 425,376 | Apr. 08, 1890 | L.D. Forbes | Abrading-cylinder |
 | 441,633 | Dec. 02, 1890 | J.B. Bennett, A.P. Boardman | Vibrator-attachment for polishing-machines |
