| All Patents in class 451/403 |
Patents 1 -
15
of 27
      |
| Number | Date | Patentee | Title | Type |
| 265,976 | Oct. 17, 1882 | W.T. Nicholson | Machine for Forming Teeth Upon File-Blanks | tool making machines |
| 399,066 | Mar. 05, 1889 | C.S. McMillan | Saw-gummer | saw gummers |
| 430,142 | Jun. 17, 1890 | G.B. Chadwick | Machine for Grinding Cocks Automatically | valve cock grinders |
| 498,240 | May 30, 1893 | R. Conrader | Reamer Grinding Machine | tool grinders |
| 630,325 | Aug. 08, 1899 | H.W. Cheney | Bevel-gear-generating machine | gear making machines |
| 679,611 | Jul. 30, 1901 | G.A. Ensign | Spoke-finishing machine | belt sanders |
| 719,769 | Feb. 03, 1903 | G.A. Ensign | Spoke-finishing machine | wheelwright |
| 921,983 | May 18, 1909 | B.M. Hanson | Indexing Mechanism | turret lathes |
| 1,104,589 | Jul. 21, 1914 | F.A. Ward, W.N. Taylor | Gear-grinding machine | gear grinding machines |
| 1,140,299 | May 18, 1915 | C.M. Conradson | Automatic Multiple Spindle Lathe | multiple spindle lathes |
| 1,442,537 | Jan. 16, 1923 | H.F. Orcutt | Dividing Head for Grinding and Other Machines | indexers and dividers |
| 1,780,886 | Nov. 04, 1930 | J.F. Pribnow, E.F. Mitchell | Circular-saw-sharpening machine | saw sharpening machines |
| 2,209,307 | Jul. 30, 1940 | F. Esz, A.H. Dall | Surface Finishing Machine | grinding machines |
| 2,270,590 | Jan. 20, 1942 | A.M. Johnson | Honing machine | honing machines |
| 2,296,731 | Sep. 22, 1942 | R.H. Mustonen | Stop mechanism for grinding machines | grinders |
