| All Patents in class 451/407 |
Patents 16 -
23
of 23
      |
| Number | Date | Patentee | Title | Type |
| 2,059,895 | Nov. 03, 1936 | C.H. Norton, A.G. Belden | Grinding machine | cylindrical grinders |
| 2,113,362 | Apr. 05, 1938 | C.H. Amidon | Grinding Machine Headstock | cylindrical grinders |
| 2,191,137 | Feb. 20, 1940 | W. Trible | Headstock Positioning Mechanism | grinding machines |
| 2,356,839 | Aug. 29, 1944 | R.E. Flanders | Tailstock | metal lathe accessories and attachments |
| 2,449,488 | Sep. 14, 1948 | E.C. Krueger | Work rest holder for centerless grinders | |
| 2,838,888 | Jun. 17, 1958 | R. Cann, J.W. Lovely | Compensating radial work support for an internal centerless grinder | grinders |
| 2,897,636 | Aug. 04, 1959 | R.S. Pyne, A.H. Tompkins | Work rest for a centerless grinder | centerless grinders |
| 2,969,623 | Jan. 31, 1961 | A.H. Faulhaber, K.D. Mehlhope | Size Gauging Device | centerless grinders |
