All Patents of Type: tool grinders |
Patents 1 -
15
of 84
|
Number | Date | Patentee | Title | Type |
5,398 | Dec. 18, 1847 | W. Hovey | Machinery for Grinding Knives which have Warped Sufaces | tool grinders |
6,949 | Dec. 11, 1849 | J. Vaughan, Jr. | Machine for Grinding or Polishing Tools | polishing and buffing machinery |
7,388 | May 21, 1850 | S. Stevens | Machine for Grinding Spiral Knives | tool grinders |
19,641 | Mar. 16, 1858 | L. Jennigs | Holder for Planing Knives while Grinding | tool grinders |
39,782 | Sep. 01, 1863 | T. Smith, J.A. Stafford | Improved Machine for Grinding Half Round Files | files |
40,838 | Dec. 08, 1863 | J.A. Hendrick | Improvement in Machines for Grinding and Polishing Tools | tool grinders |
47,527 | May 02, 1865 | J. Dodge | Grinding and Polishing Metals | polishing and buffing machinery |
68,698 | Sep. 10, 1867 | A.B. Lawther, C. Coester, Jr. | Edge Tool Grinder | tool grinders |
68,854 | Sep. 17, 1867 | J.H. Diedrichs, M.A. Diedrichs | Grinding and Polishing Metals | polishing and buffing machinery |
78,863 | Jun. 16, 1868 | M.C. Cronk | Grinding Harvester Knives | tool grinders |
79,049 | Jun. 23, 1868 | D.W. Ayres | Improved Device for Grinding Tools | tool grinders |
79,246 | Jun. 23, 1868 | M.V. Collins, M.M. Morse | Edge Tool Grinder | tool grinders |
83,405 | Oct. 27, 1868 | J.L. Otis | Improvement in Grinding Machines | tool grinders |
87,150 | Feb. 23, 1869 | B.F. Davis | Improvement in Machines for Grinding the Knives of Mowing Machines | tool grinders |
87,212 | Feb. 23, 1869 | J.D. Smith | Improvement in Machines for Grinding Edge Tools | tool grinders |