| All Patents in class 451/481 |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 2,403,546 | Jul. 09, 1946 | J.O. Olsen | Method and apparatus for honing | honing machines |
| 2,631,414 | Mar. 17, 1953 | A.A. Muehling | Honing tool with gauge | |
| 2,781,616 | Feb. 19, 1957 | M.R. Estabrook | Honing machine | honing machines |
| 2,791,871 | May 14, 1957 | A.M. Johnson | Honing machine | honing machines |
| 2,795,089 | Jun. 11, 1957 | E.Y. Seborg | Honing machine | honing machines |
| 2,797,531 | Jul. 02, 1957 | E.Y. Seborg | Honing machine with automatic gaging device | honing machines |
| 2,819,566 | Jan. 14, 1958 | A.M. Johnson | Hone expansion control mechanism | honing machines |
