| All Patents in class 451/27 |
Patents 1 -
13
of 13
      |
| Number | Date | Patentee | Title | Type |
| 654,314 | Jul. 24, 1900 | A.B. Landis | Grinding-machine | grinders |
| 660,249 | Oct. 23, 1900 | A.J. Gifford | Drilling-machine | drill presses |
| 2,049,490 | Aug. 04, 1936 | J.C. Drader | Grinding Fixture | grinding fixtures |
| 2,585,533 | Feb. 12, 1952 | W.J. Bryant, T.H. Ljunggren, W.F. Moore | Internal grinding machine with automatic air gauge sizing | cylindrical grinders |
| 2,787,865 | Apr. 09, 1957 | M.J. Gross | Honing machine and sizing mechanism therefor | honing machines |
| 2,787,866 | Apr. 09, 1957 | M.J. Gross | Plug type gage for honing machines | honing machines |
| 2,797,531 | Jul. 02, 1957 | E.Y. Seborg | Honing machine with automatic gaging device | honing machines |
| 2,870,577 | Jan. 27, 1959 | E.Y. Seborg | Honing machine with plug sizing | honing machines |
| 3,232,008 | Feb. 01, 1966 | M.R. Estabrook | Automatic honing machine | honing machines |
| 3,286,409 | Nov. 22, 1966 | D.K. Greenberg | Honing machine | honing machines |
| 3,352,067 | Nov. 14, 1967 | M.R. Estabrook | Automatic sizing device for a honing machine | honing machines |
| 4,471,580 | Sep. 18, 1984 | E.G. Robillard | Wheel Wear Compensation Control for Grinding Machine Feed Cycle | grinding machines |
| 4,704,825 | Nov. 10, 1987 | W.R. Moore | Method for Automatically Sizing a Ground Surface on a Workpiece | electronic gauges |
