| Patents for Covel Mfg. Co. |
Patents 16 -
30
of 31
      |
| Number | Date | Patentee | Title | Type |
| 755,319 | Mar. 22, 1904 | H.P. Schofield | Saw-sharpening machine | saw sharpening machines |
| 815,269 | Mar. 13, 1906 | W.L. Covel | Saw Swaging Machine | saw swages |
| 829,488 | Aug. 28, 1906 | C. Ridderhof | Mandrel-press | screw presses |
| 934,046 | Sep. 14, 1909 | W.L. Covel | Saw Swaging Machine | saw swages |
| 1,116,656 | Nov. 10, 1914 | E.C. Widemire | Micrometer back-gauge for band-saws | bandsaw accessories |
| CA-160,180 | Jan. 19, 1915 | E.C. Widemire | Gauge for band saws | bandsaw accessories |
| 1,260,974 | Mar. 26, 1918 | E.C. Filstrup | Saw Grinding Machine | saw sharpening machines |
| 1,295,156 | Feb. 25, 1919 | E.T. Gorham | Cutter-grinder | cutter grinding machines |
| 1,339,452 | May 11, 1920 | E.T. Gorham | Dressing-tool for grinding-wheels | grinder dressers |
| 1,364,747 | Jan. 04, 1921 | E.T. Gorham | Universal drill-grinder | drill grinders |
| 1,382,003 | Jun. 21, 1921 | H.W. Lightner | Drill-holder | drill sharpening machines |
| 1,391,034 | Sep. 20, 1921 | A. Williams | Drill-holder | drill sharpening machines |
| 1,475,614 | Nov. 27, 1923 | A. Williams | Head adjustment for grinding machines | surface grinders |
| 1,558,525 | Oct. 27, 1925 | A. Williams | Grinding machine | surface grinders |
| 1,596,701 | Aug. 17, 1926 | A. Williams | Truing device for grinding wheels | |
