All Patents of Type: sharpening jigs and fixtures |
Patents 1 -
9
of 9
|
Number | Date | Patentee | Title | Type |
62,945 | Mar. 19, 1867 | P.V. Dunn | Improved method of holding edged tools on grindstones | sharpening jigs and fixtures |
102,218 | Apr. 26, 1870 | H. Brown | Improvement in oil-stone holders | sharpening jigs and fixtures |
407,651 | Jul. 23, 1889 | C. Everding | Sharpening Device | sharpening jigs and fixtures |
470,196 | Mar. 08, 1892 | J.H. Stein, C.J. Jacobson | Tool-holder for grinding tools | sharpening jigs and fixtures |
609,046 | Aug. 16, 1898 | R.E. Poindexter | Knife or scissors sharpener | sharpening jigs and fixtures |
612,912 | Oct. 25, 1898 | R.E. Poindexter | Knife-sharpener | sharpening jigs and fixtures |
620,050 | Feb. 21, 1899 | R.E. Poindexter | Knife-sharpener | sharpening jigs and fixtures |
2,741,077 | Apr. 10, 1956 | E.F. Ayer | Clamping devices | sharpening jigs and fixtures |
4,266,583 | May 12, 1981 | O.E. Raab, C.E. Kirk | Spindle turning tool | sharpening jigs and fixtures |