All Patents of Type: hand grinders |
Patents 1 -
7
of 7
|
Number | Date | Patentee | Title | Type |
442,349 | Dec. 09, 1890 | A.B. Benedict | Means for operating grinding-machines | hand grinders |
813,167 | Feb. 20, 1906 | L.H. Olmsted | Grinding apparatus | hand grinders |
1,006,026 | Oct. 17, 1911 | J.M. Thompson | Gear-casing | hand grinders |
1,220,086 | Mar. 20, 1917 | B.L. Fry | Grinding-machine | hand grinders |
1,298,653 | Apr. 01, 1919 | E. Bockshe | Adjustable casing for grinders | hand grinders |
1,386,088 | Aug. 02, 1921 | W.J. Boettcher | Tool Grinder | hand grinders |
1,567,442 | Dec. 29, 1925 | F.S. Hyland | Grinder | hand grinders |