| All Patents in class 251/229 |
Patents 1 -
8
of 8
      |
| Picture | Number | Date | Patentee | Title |
 | 386,213 | Jul. 17, 1888 | L.H. Nash | Ignitor for Gas Engines |
 | 854,418 | May 21, 1907 | S.S. Hall | Engine-governor |
| | 1,791,600 | Feb. 10, 1931 | J.W. Onions | Fuel Distributing Pump for Internal Combustion Engines |
| | 2,082,092 | Jun. 01, 1937 | A.D. Baker | Auxiliary Gear Mechanism |
| | 2,276,227 | Mar. 10, 1942 | E.J. Dillman | Control Device |
 | 2,319,964 | May 25, 1943 | F.C. Wilson | Hydraulic press |
| | 2,617,622 | Nov. 11, 1952 | I.M. White | Axially Movable Rotary Valve |
| | 3,315,569 | Apr. 25, 1967 | L.A. Dever | Control Mechanism for Machine Tool |
