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| All Patents in class 313/141 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 362,187 | May 03, 1887 | J.C. Beckfeld, A. Schmid | Gas Engine | ||
| 376,212 | Jan. 10, 1888 | H.K. Shanck | Gas Engine | ||
| 402,363 | Apr. 30, 1889 | H. Tenting | Gas Engine | ||
| 461,802 | Oct. 20, 1891 | P.C. Sainsevain | Gas or Gasoline Vapor Engine | ||
| 563,249 | Jul. 07, 1896 | H.C. Baker | Gas Engine | ||
| 582,540 | May 11, 1897 | O. Mueller | Igniter for Explosive Engines | ||
| 604,241 | May 17, 1898 | D.M. Tuttle | Gas Engine | ||
| 925,239 | Jun. 15, 1909 | F.W. Smith | Spark Plug | ||