| All Patents in class 451/27 |
Patents 1 -
10
of 13
      |
| Picture | Number | Date | Patentee | Title |
 | 654,314 | Jul. 24, 1900 | A.B. Landis | Grinding-machine |
 | 660,249 | Oct. 23, 1900 | A.J. Gifford | Drilling-machine |
| | 2,049,490 | Aug. 04, 1936 | J.C. Drader | Grinding Fixture |
 | 2,585,533 | Feb. 12, 1952 | W.J. Bryant, T.H. Ljunggren, W.F. Moore | Internal grinding machine with automatic air gauge sizing |
| | 2,787,865 | Apr. 09, 1957 | M.J. Gross | Honing machine and sizing mechanism therefor |
| | 2,787,866 | Apr. 09, 1957 | M.J. Gross | Plug type gage for honing machines |
| | 2,797,531 | Jul. 02, 1957 | E.Y. Seborg | Honing machine with automatic gaging device |
| | 2,870,577 | Jan. 27, 1959 | E.Y. Seborg | Honing machine with plug sizing |
| | 3,232,008 | Feb. 01, 1966 | M.R. Estabrook | Automatic honing machine |
| | 3,286,409 | Nov. 22, 1966 | D.K. Greenberg | Honing machine |
