| All Patents in class 451/364 |
Patents 1 -
15
of 26
      |
| Number | Date | Patentee | Title | Type |
| 14,950 | May 27, 1856 | W. Clemson | Grinding circular saws | saw sharpening machines |
| 41,646 | Feb. 16, 1864 | D. Slate | Improved apparatus for grinding cutter-bits for rifling-machines | |
| 146,050 | Dec. 30, 1873 | J.H. Curran | Sharpening-Machines | sharpening machines |
| 152,323 | Jun. 23, 1874 | C.S. Bement | Improvement in machines for grinding carpenters' squares | tool making |
| 562,678 | Jun. 23, 1896 | C. Bodmer, J.A. Traut | Machine for Graduating Glasses or Tubes | tool making machines |
| 575,319 | Jan. 19, 1897 | H.G. Barr | Cutter and Reamer Grinder | cutter grinding machines |
| 590,498 | Sep. 21, 1897 | C.H. Norton | Grinding Machine | grinders |
| 803,800 | Nov. 07, 1905 | E.W. Bailey | Polishing-belt deflector | belt sanders |
| 867,198 | Sep. 24, 1907 | A.E. Thayer, B.M. Hanson | Foot Stock | cylindrical grinders |
| 980,053 | Dec. 27, 1910 | J. Hausman, J.C. Blevney | Grinding and polishing machine | sanding machines |
| 1,032,758 | Jul. 16, 1912 | T. Lumsden | Tool and like grinding machine | tool grinders |
| 1,125,198 | Jan. 19, 1915 | H.K. Spencer | Magnetic Chuck | magnetic chucks |
| 1,182,861 | May 09, 1916 | H.K. Spencer | Metal Working Tool | dial indicator gauges |
| 1,336,928 | Apr. 13, 1920 | F.L. Simmons | Method and Apparatus for Alining Work on V Blocks and the Like for Magnetic Chucks | magnetic chuck accessories |
| 1,662,078 | Mar. 13, 1928 | O. Severson | Method of and Machine for Grinding Fine-Tooth Hobs | hob grinding machines |
