| Patents for Jason F. Williamson |
Patents 1 -
10
of 12
      |
| Picture | Number | Date | Patentee | Title |
 | 407,806 | Jul. 30, 1889 | J. Peebles, E.J. Woolf | Valve Gear for Engines |
 | 444,563 | Jan. 13, 1891 | E.J. Woolf | Valve-Gear for Engines |
 | 455,872 | Jul. 14, 1891 | J. Peebles, E.J. Woolf | Valve Gear for Engines |
 | 475,427 | May 24, 1892 | E.J. Woolf | Single Cylinder Compound Engine |
 | 521,278 | Jun. 12, 1894 | E.J. Woolf | Engine |
 | 531,285 | Dec. 18, 1894 | E.J. Woolf | Engine |
 | 627,219 | Jun. 20, 1899 | E.J. Woolf | Air and Gas Engine |
 | 627,220 | Jun. 20, 1899 | E.J. Woolf | Air and Gas Engine |
 | 824,396 | Jun. 26, 1906 | E.J. Woolf | Explosive Engine |
 | 878,925 | Feb. 11, 1908 | E.J. Woolf | Reversible Explosive Compound-Engine. |
