| All Patents in class 451/361 |
Patents 16 -
30
of 30
      |
| Number | Date | Patentee | Title | Type |
| 1,189,557 | Jul. 04, 1916 | F.N. Gardner, F.E. Gardner | Grinding-machine | drum sanders |
| 1,329,857 | Feb. 03, 1920 | R. Rosner | Milling and Grinding Tool Holder | sharpening tool holders |
| 1,404,337 | Jan. 24, 1922 | B. Bethke | Clamping support for grinding machines | bench or pedestal grinders |
| 1,539,829 | Jun. 02, 1925 | F.L. Cole | Guard and work-rest mounting | |
| 1,587,865 | Jun. 08, 1926 | F. Schneider | Grinding machine | bench or pedestal grinders |
| 1,674,350 | Jun. 19, 1928 | R.R. Weddell | Universal Grinding Fixture | hob grinding machines |
| 1,918,952 | Jul. 18, 1933 | W. Krause, A.B. Bachmann | Flexible Shaft Bench Grinder | grinders |
| 1,938,723 | Dec. 12, 1933 | E. Ritz, Jr. | Grinding machine | bench or pedestal grinders |
| 2,052,031 | Aug. 25, 1936 | W.J. Merrigan | Combination grinder and sander | sanding machines |
| 2,061,626 | Nov. 24, 1936 | C.L. Hawes | Grinding and Polishing Apparatus | polishing machines |
| 2,118,967 | May 31, 1938 | F.W. Curtis | Cutter grinder | tool grinders |
| 2,153,502 | Apr. 04, 1939 | W.F. Ocenasek | Apparatus for bench grinding long blades | cutter grinding |
| 2,391,375 | Dec. 18, 1945 | J.C. Wilson | Spindle shaft with intermediate ball bearing | metalworking machine bearings |
| 2,637,147 | May 05, 1953 | J.N. Clyne | Buffing machine | polishing machines |
| 2,888,965 | Jun. 02, 1959 | C.A. Phillips | Mountings for a portable electric motor | handheld power drill guides |
