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| All Patents in class 123/90.64 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 253,709 | Feb. 14, 1882 | R. Hutchinson | Gas Engine | ||
 | 284,557 | Sep. 04, 1883 | G.M. Hopkins | Gas Engine | |
| 581,385 | Apr. 27, 1897 | E.P. Woillard | Gas or Vapor Engine | ||
| 600,675 | Mar. 15, 1898 | J. Lizotte | Gas Engine | ||
| 606,504 | Jun. 28, 1898 | S. Bouton | Explosive Engine | ||
| 658,595 | Sep. 25, 1900 | W.E. Simpson | Internal-Combustion Motor | ||
| 816,062 | Mar. 27, 1906 | I.S. Barnett | Gas Engine | ||