| All Patents in class 451/157 |
Patents 1 -
12
of 12
      |
| Number | Date | Patentee | Title | Type |
| 908,462 | Jan. 05, 1909 | J.P. Hedstrom | Oscillating mechanism for lap-grinding machines | making handsaws |
| 1,104,589 | Jul. 21, 1914 | F.A. Ward, W.N. Taylor | Gear-grinding machine | gear grinding machines |
| 1,189,557 | Jul. 04, 1916 | F.N. Gardner, F.E. Gardner | Grinding-machine | drum sanders |
| 1,732,560 | Oct. 22, 1929 | A.M. Johnson | Honing machine | honing machines |
| 1,840,231 | Jan. 05, 1932 | F.S. Haas, R.E. Harrison | Grinding Machine | grinding machines |
| 1,849,868 | Mar. 15, 1932 | S. Einstein | Grinder Wheel Oscillator | grinder dressers |
| 2,242,781 | May 20, 1941 | V.W. Gideon | Grinding Machine | grinding machines |
| 2,426,028 | Aug. 19, 1947 | A.F. Krueger | Sanding machine | sanding machines |
| 2,960,804 | Nov. 22, 1960 | S.G. Brady | Machine for Grinding the Back-Off from the Cutting Edges of Tools of the Broach Type | broach sharpening machines |
| 3,003,291 | Oct. 10, 1961 | A.D. Stuckey | Mechanism for Shoulder Grinding | grinding machines |
| 5,525,099 | Jun. 11, 1996 | R.L. Wilson, L.C. Brickner, C.J. Baird | Apparatus for linearly displacing a rotatable spindle | |
| 7,004,818 | Feb. 28, 2006 | D.E. Haney | Sander with orbiting platen and abrasive | sanding machines |
