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| All Patents in class 123/90.17 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 264,126 | Sep. 12, 1882 | C.G. Beechey | Gas Engine | ||
 | 328,970 | Oct. 27, 1885 | J.F. Place | Gas Engine | |
| 403,379 | May 14, 1889 | J.A. Wharry, N. Rogers | Gas Engine | ||
| 627,338 | Jun. 20, 1899 | L.S. Kirker | Gas Engine | ||
| 637,317 | Nov. 21, 1899 | S.W. Zent | Gas or Gasolene Engine | ||
| 658,595 | Sep. 25, 1900 | W.E. Simpson | Internal-Combustion Motor | ||