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| All Patents in class 123/41.01 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 4,800 | Oct. 07, 1846 | S. Perry | Gas Engine | |
| 273,750 | Mar. 13, 1883 | H.S. Maxim | Gas Engine | ||
| 347,469 | Aug. 17, 1886 | J.H. Clark | Gas Engine | ||
 | 351,395 | Oct. 26, 1886 | P. Murray, Jr. | Gas Engine | |
| 392,191 | Nov. 06, 1888 | H.T. Dawson | Gas Engine | ||
| 532,555 | Jan. 15, 1895 | F. Hirsch | Gas Engine | ||
| 657,810 | Sep. 11, 1900 | W.E. Cary | Gas Engine | ||