| Patents for Covel Mfg. Co. |
Patents 1 -
15
of 18
      |
| Number | Date | Patentee | Title | Type |
| 319,794 | Jun. 09, 1885 | M. Covel | Saw sharpening machine | saw sharpening machines |
| 574,855 | Jan. 05, 1897 | H.P. Schofield | Saw-sharpening machine | saw sharpening machines |
| 615,152 | Nov. 29, 1898 | L.L. Filstrup | Saw-sharpening machine | saw sharpening machines |
| RE11,733 | Apr. 11, 1899 | L.L. Filstrup | Saw-sharpening machine | saw sharpening machines |
| 628,655 | Jul. 11, 1899 | L.L. Filstrup | Saw-sharpening machine | saw sharpening machines |
| 654,829 | Jul. 31, 1900 | L.L. Filstrup | Saw-sharpening machine | saw sharpening machines |
| 654,843 | Jul. 31, 1900 | H.P. Schofield | Saw support and guide | saw sharpening machines |
| 654,844 | Jul. 31, 1900 | H.P. Schofield | Saw-sharpening machine | saw sharpening machines |
| 654,845 | Jul. 31, 1900 | H.P. Schofield | Saw-support | saw sharpening machines |
| 667,924 | Feb. 12, 1901 | H.P. Schofield, L.L. Filstrup | Saw-sharpening machine | saw sharpening machines |
| 669,251 | Mar. 05, 1901 | L.L. Filstrup, H.P. Schofield | Saw-sharpening machine | saw sharpening machines |
| 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 |
| 934,046 | Sep. 14, 1909 | W.L. Covel | Saw Swaging Machine | saw swages |
| 1,260,974 | Mar. 26, 1918 | E.C. Filstrup | Saw Grinding Machine | saw sharpening machines |
