All Patents of Type: sharpening apparatus |
Patents 1 -
15
of 24
|
Number | Date | Patentee | Title | Type |
5,613X | Aug. 18, 1829 | W.J. Dunn | Knife Sharpener | sharpening apparatus |
71,442 | Nov. 26, 1867 | A.B. Bean | Improvement in knife-sharpener | sharpening apparatus |
71,491 | Nov. 26, 1867 | J.N. Jacobs | Improved knife and scissors-sharpener | sharpening apparatus |
97,090 | Nov. 23, 1869 | W.H. Howland | Improvement in knife-sharpener | sharpening apparatus |
97,098 | Nov. 23, 1869 | T. Loring | Improvement in grindstones | sharpening apparatus |
103,633 | May 31, 1870 | T. Loring | Improvement in Harvester-knife grinder | sharpening apparatus |
290,236 | Dec. 18, 1883 | R.R. Isaac | Machine for Sharpening Mowing Machine Knives | sharpening apparatus |
GB-188,414,825 | Nov. 11, 1884 | A. Dey | Razor-strop machine | sharpening apparatus |
339,683 | Apr. 13, 1886 | W.H. Parkin | Emery Knife Sharpener | sharpening apparatus |
389,291 | Sep. 11, 1888 | A. Dey | Razor-sharpening machine | sharpening apparatus |
CA-31,701 | Jul. 02, 1889 | A. Dey | Razor sharpening machine | sharpening apparatus |
411,587 | Sep. 24, 1889 | A. Dey | Razor-sharpening machine | sharpening apparatus |
465,376 | Dec. 15, 1891 | A. Johnston | Means for Grinding Cutlery or Other Articles | sharpening apparatus |
465,478 | Dec. 22, 1891 | A. Johnston | Grinding Machine | sharpening apparatus |
469,615 | Feb. 23, 1892 | S.W. Wardwell | Knife Sharpener | sharpening apparatus |