| All Patents in class 407/68 |
Patents 1 -
8
of 8
      |
| Picture | Number | Date | Patentee | Title |
| | 146,450 | Jan. 13, 1874 | D.B. Denison, J.H. Haskins | Screw Cutting Tools for Metal Lathes |
 | 150,395 | May 05, 1874 | J.C. Chapman | Slotting and Planing Tools |
| | 968,776 | Aug. 30, 1910 | R.B. Levett | Tool Holder |
| | 1,064,725 | Jun. 17, 1913 | F.M. Hall | Multiple Tool Holder |
| | 2,275,327 | Mar. 03, 1942 | O. Severson, H.M. Sheridan | Tool Holder |
| | 2,556,127 | Jun. 05, 1951 | J.M. Walter | Gang Cutter |
| | 2,900,705 | Aug. 25, 1959 | H. Walker | Tool Holder |
| | 3,207,011 | Sep. 21, 1965 | E.L. Erfert | Machining Apparatus |
