| All Patents in class 123/188.8 |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 545,502 | Sep. 03, 1895 | H.H. Nennegin | Gas Engine | gas and gasoline engines |
| 632,888 | Sep. 12, 1899 | S.A. Ayres | Gas Engine | internal combustion engine governors |
| 909,214 | Jan. 12, 1909 | G.B. Petsche | Admission Valve for Gas Engines | internal combustion engine valves |
| 1,512,952 | Oct. 28, 1924 | J.A. Secor | Reatomizer | carburetors |
| 1,709,807 | Apr. 16, 1929 | T.S. Purnis | Liner for valve seats | valve and seat maintenance |
| 1,783,884 | Dec. 02, 1930 | C.C. Lee | Valve-seat liner | valve and seat maintenance |
| 2,017,154 | Oct. 15, 1935 | E.T. Larkin | Valve Seat Construction for Engines and the Like | valves |
| 2,056,160 | Oct. 06, 1936 | H.L. Allen | Valve Element and the Method of Forming the Same | internal combustion engine valves |
