| All Patents in class 408/226 |
Patents 1 -
10
of 37
      |
| Picture | Number | Date | Patentee | Title |
 | 1,816 | Oct. 10, 1840 | J. Lindly | Improvement in Machines for Cutting Screws Upon the ends of the Rails of Bedsteads |
 | 22,394 | Dec. 21, 1858 | N.S. White, A. Denio | Method of attaching cutting-tips to auger-shanks |
 | 81,607 | Sep. 01, 1868 | P. Cunningham | Bit for Mortising Machine |
 | 118,178 | Aug. 22, 1871 | B. Arnold | Improvement in Twist-Drills |
 | 270,258 | Jan. 09, 1883 | J.H. Stickney | Brad-awl |
 | 339,544 | Apr. 06, 1886 | S.P. Graham | Combined boring-tool and holder |
 | 352,139 | Nov. 09, 1886 | J. Leuenberger | Washer or gasket cutter |
| | 362,044 | Apr. 26, 1887 | J.F. Strange | Bit |
| | 492,733 | Feb. 28, 1893 | H. Meister | Chuck and Drill |
 | 527,064 | Oct. 09, 1894 | M.C. Johnson | Driving-clutch |
