| All Patents in class 408/189 |
Patents 1 -
10
of 27
      |
| Picture | Number | Date | Patentee | Title |
 | 25,348 | Sep. 06, 1859 | H. Pennie | Bit for Cutting Circular Washers |
 | 50,600 | Oct. 24, 1865 | O.A. Smith, C.A. King | Improved Tool for Cutting Washers |
 | 72,436 | Dec. 17, 1867 | A. Wippo | Auger & Rounder for Installing Casters |
 | 80,059 | Jul. 21, 1868 | A.M. Connett | Bit stock; circle cutter on graduated arm of stock |
 | 94,870 | Sep. 14, 1869 | W.A. Clark | Improved Washer-Cutter |
 | 107,700 | Sep. 27, 1870 | P. McCormick | Improvement in Washer-Cutters |
 | 112,063 | Feb. 21, 1871 | J.C. Mills | Improvement in Auger-Bits |
 | 120,827 | Nov. 14, 1871 | R.L. Priester | Improvement in Augers for Boring Boxes |
 | 160,015 | Feb. 23, 1875 | D. Goodnow, Jr. | Improvement in Devices for Cutting out Sheet-Metal Washers |
 | 168,607 | Oct. 11, 1875 | E. Brule | Improvement in Washer-Cutters |
