| All Patents in class 451/403 |
Patents 1 -
10
of 28
      |
| Picture | Number | Date | Patentee | Title |
 | 265,976 | Oct. 17, 1882 | W.T. Nicholson | Machine for Forming Teeth Upon File-Blanks |
| | 399,066 | Mar. 05, 1889 | C.S. McMillan | Saw-gummer |
| | 430,142 | Jun. 17, 1890 | G.B. Chadwick | Machine for Grinding Cocks Automatically |
| | 498,240 | May 30, 1893 | R. Conrader | Reamer Grinding Machine |
 | 630,325 | Aug. 08, 1899 | H.W. Cheney | Bevel-gear-generating machine |
 | 679,611 | Jul. 30, 1901 | G.A. Ensign | Spoke-finishing machine |
 | 719,769 | Feb. 03, 1903 | G.A. Ensign | Spoke-finishing machine |
| | 921,983 | May 18, 1909 | B.M. Hanson | Indexing Mechanism |
 | 1,104,589 | Jul. 21, 1914 | F.A. Ward, W.N. Taylor | Gear-grinding machine |
| | 1,140,299 | May 18, 1915 | C.M. Conradson | Automatic Multiple Spindle Lathe |
