| All Patents in class 408/223 |
Patents 1 -
10
of 40
      |
| Picture | Number | Date | Patentee | Title |
 | 82 | Nov. 17, 1836 | G. Page | Spiral bit with countersink for setting screws |
| | 166 | Apr. 17, 1837 | J. Barns | Standing Press |
 | 1,723 | Aug. 14, 1840 | W.L. Harley | Machine for boring and mortising in chair seats, legs, and arms |
 | 4,829 | Oct. 29, 1846 | J. Guild | Boring and Cutting Screws on Bedsteads |
 | 7,083 | Feb. 12, 1850 | G. Flautt | Auger for boring-machines |
 | 36,534 | Sep. 23, 1862 | N.C. Sanford | Improvement in Augers |
 | 42,075 | Mar. 29, 1864 | E. Caswell | Improvement in machines for boring wagon-hubs |
 | 60,207 | Dec. 04, 1866 | H.C. Lewis | Improved Countersink Bit |
 | 89,097 | Apr. 20, 1869 | C. Wardwell | Improvement in Augers |
 | 95,846 | Oct. 12, 1869 | S.A. Smith | Improvement in Combined Bit and Tap |
