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| All Patents in class 123/41.82R | |||||
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| Picture | Number | Date | Patentee | Title | |
| 406,160 | Jul. 02, 1889 | E. Captaine | Gas Motor | ||
| 542,743 | Jul. 16, 1895 | F.M. Underwood | Cylinder Head for Gas or Gasoline Engines | ||
| 543,614 | Jul. 30, 1895 | J. Day | Gas Engine | ||
| 544,210 | Aug. 06, 1895 | F.W. Cock | Gas Engine | ||
| 570,649 | Nov. 03, 1896 | R.J. Rolfson | Gas Engine | ||
| 637,298 | Nov. 21, 1899 | G.S. Strong | Gas Engine | ||
 | 673,029 | Apr. 30, 1901 | J.W. Raymond | Cooling means for gas-engines | |
 | 1,213,340 | Jan. 23, 1917 | F.M. Davis | Gas-engine | |