| All Patents in class 72/324 |
Patents 1 -
10
of 11
      |
| Picture | Number | Date | Patentee | Title |
 | 9,000 | Jun. 08, 1852 | J. Orelup | Process for Making Axes |
 | 31,927 | Apr. 02, 1861 | L. Dodge | Shear for the manufacture of axes |
 | 109,881 | Dec. 06, 1870 | T.S. Disston | Improved Process for concave/vex Circular blades |
| | 240,984 | May 03, 1881 | T.P. Farmer | Art of Manufacturing Twist Drills |
| | 314,845 | Mar. 31, 1885 | J.U. Hubbard | Die for forming ax-poll clips |
 | 1,041,978 | Oct. 22, 1912 | E.G. Diefendorf | Pipe Wrench |
 | 1,716,331 | Jun. 04, 1929 | B.F. Stowell | Method of making collets |
 | 2,053,309 | Sep. 08, 1936 | H.M. Yeager | Combination wire and band cutter, bender, and perforator |
| | 2,066,372 | Jan. 05, 1937 | J.J. Tomalis | Method of Making Dies or Punches |
| | 2,358,304 | Sep. 19, 1944 | S.A. Cogsdill | Method of Making Oil Hole Twist Drills |
