| All Patents in class 451/155 |
Patents 16 -
29
of 29
      |
| Number | Date | Patentee | Title | Type |
| 1,762,606 | Jun. 10, 1930 | A. Bjorklund | Abrading machine | oscillating spindle sanders |
| 1,862,834 | Jun. 14, 1932 | M.O. Trudeau | Grinding Machine | grinding machines |
| 1,862,850 | Jun. 14, 1932 | H. Fritschi | Grinding Machinery | grinding machines |
| 1,945,045 | Jan. 30, 1934 | A.M. Johnson | Honing machine | honing machines |
| 1,976,114 | Oct. 09, 1934 | C. Booth | Grinding Machine | grinding machines |
| 2,083,194 | Jun. 08, 1937 | A.M. Johnson | Honing machine | honing machines |
| 2,111,784 | Mar. 22, 1938 | A.M. Johnson | Honing machine | honing machines |
| 2,175,057 | Oct. 03, 1939 | B.A. Kearns | Spindle Reciprocating Mechanism for Grinding Machines | grinding machines |
| 2,646,685 | Jul. 28, 1953 | H.E. Willitts | Shaft vibrator | sanding machines |
| 2,791,871 | May 14, 1957 | A.M. Johnson | Honing machine | honing machines |
| 2,819,566 | Jan. 14, 1958 | A.M. Johnson | Hone expansion control mechanism | honing machines |
| 2,870,577 | Jan. 27, 1959 | E.Y. Seborg | Honing machine with plug sizing | honing machines |
| 3,352,067 | Nov. 14, 1967 | M.R. Estabrook | Automatic sizing device for a honing machine | honing machines |
| 3,418,758 | Dec. 31, 1968 | J. McEwan | Oscillating vertical spindle sander | oscillating spindle sanders |
