All Patents in class 451/367 |
Patents 16 -
30
of 46
|
Number | Date | Patentee | Title | Type |
613,127 | Oct. 25, 1898 | W. Eames | Twist Drill Grinder | drill grinders |
614,092 | Nov. 15, 1898 | G.T. Eames | Drill-grinder | drill sharpening machines |
643,914 | Feb. 20, 1900 | E.F. Shaw | Trowel Grinding Machine | grinding machines |
736,573 | Aug. 18, 1903 | J. Bath | Tool Holder for Grinding Machines | tool grinders |
976,270 | Nov. 22, 1910 | W.A. Leonard | Die Grinder | tool grinders |
1,221,556 | Apr. 03, 1917 | L.P. McEachron | Tool Holder | sharpening tool holders |
1,252,612 | Jan. 08, 1918 | R.W. Perry | Sharpening Device | |
1,257,927 | Feb. 26, 1918 | W.M. Reagan | Scissors and Shears Sharpening Device | scissor sharpeners |
1,266,183 | May 14, 1918 | H.A. Vincent | Device for Sharpening Safety Razor Blades | cutler |
1,268,341 | Jun. 04, 1918 | J.J. Gillespie | Grinding Machine | bench or pedestal grinders |
1,275,208 | Aug. 13, 1918 | E. Bockshe | Tool Support for Grinders | |
1,279,025 | Sep. 17, 1918 | R.H. Shay | Tool Holder | sharpening tool holders |
1,280,284 | Oct. 01, 1918 | W.E. Nickerson | Blade Holding Mechanism for Blade Sharpening Machines | sharpening machines |
1,391,034 | Sep. 20, 1921 | A. Williams | Drill-holder | drill sharpening machines |
1,455,405 | May 15, 1923 | J.F. Nagle | Fixture for Grinding Beveled Chisels | grinding fixtures |