| All Patents in class 451/64 |
Patents 16 -
27
of 27
      |
| Number | Date | Patentee | Title | Type |
| 2,111,784 | Mar. 22, 1938 | A.M. Johnson | Honing machine | honing machines |
| 2,114,349 | Apr. 19, 1938 | A.M. Johnson | Honing machine | honing machines |
| 2,118,912 | May 31, 1938 | J.B. Armitage | Cutter Grinder | tool grinders |
| 2,178,875 | Nov. 07, 1939 | B.A. Kearns | Continuous Truing Mechanism | grinding machines |
| 2,284,954 | Jun. 02, 1942 | R.E. Flanders | Grinding Wheel and Truing Mechanism Feed | grinder dressers |
| 2,288,508 | Jun. 30, 1942 | M.H. Arms, J.B. Johnson | Grinding wheel mounting and control | grinders |
| 2,370,580 | Feb. 27, 1945 | E.A. Allen, R.S. Pyne | Cross-feed mechanism for grinding machines | grinders |
| 2,537,389 | Jan. 09, 1951 | J. Decker, A.F. Alt | Grinding Machine | cylindrical grinders |
| 2,575,792 | Nov. 20, 1951 | R.D. Bullard, J.H. Sherwood, P.M. Geist | Control Mechanism | |
| 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 |
| 2,641,876 | Jun. 16, 1953 | B.A. Kearns, J. Decker | Precision Grinding Machine | cylindrical grinders |
| 2,652,663 | Sep. 22, 1953 | E.C. Taylor | Method and apparatus for compensating for grinding wheel wear | grinders |
