| All Patents in class 74/357 |
Patents 1 -
10
of 10
      |
| Picture | Number | Date | Patentee | Title |
 | 233,702 | Oct. 26, 1880 | C.W. Riley | Screw Cutting Lathe |
 | 742,025 | Oct. 20, 1903 | P.V. Vernon, A. Herbert | Variable Speed Driving Mechanism |
 | 745,812 | Dec. 01, 1903 | W.E. Gang, G.W. Hart | Device for transmitting motion |
 | 749,492 | Jan. 12, 1904 | W. Lodge | Variable Speed Mechanism for Lathes |
 | 803,627 | Nov. 07, 1905 | S.C. Schauer | Speed-Changing Device |
| | 862,075 | Jul. 30, 1907 | E. Henrikson | Speed-Box and Brake-Operating Mechanism |
| | 997,700 | Jul. 11, 1911 | C.A. Rich | Power-Transmitting Mechanism |
 | 1,858,889 | May 17, 1932 | W.W. Edwards | Change speed mechanism |
 | 2,534,993 | Dec. 19, 1950 | E.J. Robichaud | Automatic Bar Stock Machine |
 | 3,253,476 | May 31, 1966 | E. Olah | Variable speed drill |
