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| All Patents in class 123/188.3 | |||||
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| Number | Date | Patentee | Title | Type | |
| 228,717 | Jun. 08, 1880 | E.F. Woodbury, G. Patten, J. Merrill, J.A. Woodbury | Heaters for Air-Engines | hot air engines | |
| 328,970 | Oct. 27, 1885 | J.F. Place | Gas Engine | gas and gasoline engines | |
| 556,037 | Mar. 10, 1896 | C.W. Weiss | Valve | internal combustion engine valves | |
| 922,059 | May 18, 1909 | E.B. Stimpson | Rivet | rivets | |
| 2,265,561 | Dec. 09, 1941 | J.H. Hoern | Method of Making Valve Tappets | internal combustion engines | |