| All Patents in class 74/63 |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 8,880X | Jun. 12, 1835 | J. Nicolet | Steamboats, anti-friction wheels | steamboats |
| 9,203X | Oct. 27, 1835 | D. Russel | Propelling machinery | |
| 9,717X | Jun. 11, 1836 | R. Porter | Horse Power | animal powered apparatus |
| 2,522,736 | Sep. 19, 1950 | F.G. Zagar | Parallel motion multiple spindle head | multiple spindle drilling heads |
| 2,875,629 | Mar. 03, 1959 | J.E. Poorman | Adjustable Off-Center Drill Holder | drill press chucks |
| 3,071,990 | Jan. 08, 1963 | H.R. Uhtenwoldt | Transmission | metalworking power transmission |
