| All Patents in class 451/450 |
Patents 31 -
45
of 59
      |
| Number | Date | Patentee | Title | Type |
| 2,197,538 | Apr. 16, 1940 | G.W. Binns, A.H. Dall | Metal Finishing Machine | grinding machines |
| 2,209,307 | Jul. 30, 1940 | F. Esz, A.H. Dall | Surface Finishing Machine | grinding machines |
| 2,372,699 | Apr. 03, 1945 | H.V. Boehnke, C.A. Wiken | Cutting machine | circular crosscut saws |
| 2,374,716 | May 01, 1945 | C.A. Wiken | Grinder | cutter grinding |
| 2,384,225 | Sep. 04, 1945 | J.C. Wilson | Method and Apparatus for Maintaining Uniform Temperature of Diverse Fluids in a Machine Tool | metalworking machine mechanisms |
| 2,413,016 | Dec. 24, 1946 | H.V. Boehnke, C.A. Wiken | Cutting machine | circular crosscut saws |
| 2,446,597 | Aug. 10, 1948 | H.J. Kingsbury | Worktable for belt grinders or the like | sanding machines |
| 2,470,350 | May 17, 1949 | J.A. Harrington | Water-cooled grinding wheel | surface grinders |
| 2,535,184 | Dec. 26, 1950 | J.C. Wilson | Method and Apparatus for Supplying Coolant to Grinding Wheels | coolant apparatus |
| 2,575,656 | Nov. 20, 1951 | J.B. Dym, H.D. Coe, Jr. | Means for finishing workpieces of irregular shapes | belt sanders |
| 2,586,242 | Feb. 19, 1952 | J.S. Mathews | Coolant System for Grinding Machines | coolant apparatus |
| 2,612,015 | Sep. 30, 1952 | F.G. Krafft | Mounting Structure for Grinding Wheels | surface grinders |
| 2,683,335 | Jul. 13, 1954 | J.J. Strnad | Base for crankshaft grinder | crankshaft maintenance |
| 2,708,332 | May 17, 1955 | V.E. Riddell, C.M. Buttiger | Coolant to grinding wheels | grinders |
| 2,738,625 | Mar. 20, 1956 | J.J. Strnad | Grinding machine | gasket surface maintenance |
