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| All Patents in class 123/54.4 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 353,402 | Nov. 30, 1886 | J.H. Clark | Reversible Gas Engine | ||
| 418,112 | Dec. 24, 1889 | G. Daimler | Gas or Petroleum Motor | ||
| 625,416 | May 23, 1899 | L.L. Revel | Carbureted Air or Other Fluid Pressure Engine | ||
 | 1,078,919 | Nov. 18, 1913 | E.J. Hall | Internal-combustion engine | |
 | 1,102,700 | Jul. 07, 1914 | W. Spacke, D.T. Brownlee, F.W. Spacke | Internal-Combustion Engine | |
| D131,706 | Mar. 24, 1942 | H. Schreck | Twin Cylinder V-Type Engine | ||