| All Patents in class 451/236 |
Patents 1 -
15
of 28
      |
| Number | Date | Patentee | Title | Type |
| 12,088 | Dec. 19, 1854 | C.P. Bailey | Feeding apparatus to machine for cutting irregular forms | pattern lathes |
| 105,543 | Jul. 19, 1870 | J.A. Borthwick | Improvement in Machine for Sharpening Saws | annular saws |
| 132,928 | Nov. 12, 1872 | R.T. Smith | Improvement in machines for carving, polishing, etc. | sanding machines |
| 214,002 | Apr. 08, 1879 | E.W. Phelps | Saw Sharpening Machine | saw sharpening machines |
| 402,560 | May 07, 1889 | G. Carlsen | Saw-sharpening machine | saw sharpening machines |
| 403,712 | May 21, 1889 | O.A. Winter | Machine for grinding the cutters of wood-cutting machines | sharpening machines |
| 406,079 | Jul. 02, 1889 | H.T. Basim | Saw gumming and sharpening machine | saw sharpening machines |
| 432,144 | Jul. 15, 1890 | W.J. Muncaster | Machine for Polishing Shafting | polishing machines |
| 439,300 | Oct. 28, 1890 | A. Manecke | Grinding and Polishing Machine | grinders |
| 449,059 | Mar. 24, 1891 | H. Trost | Polishing-machine | sanding machines |
| 453,297 | Jun. 02, 1891 | G.W. Watrous | Grinding Machine | surface grinders |
| 749,821 | Jan. 19, 1904 | T.C. Hansen | Drilling-machine | music instrument maker |
| 835,317 | Nov. 06, 1906 | O.H. Ostlund | Floor-polishing device | |
| 1,104,988 | Jul. 28, 1914 | B.M. Hanson | Metal Reducing Machine | surface grinders |
| 1,131,777 | Mar. 16, 1915 | B.O. Gage | Tool Holder for Rotary Drilling and Like Devices | drilling and boring tool holders |
