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| All Patents in class 261/112.1 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 536,415 | Mar. 26, 1895 | J.L. Bogert | Vacuum-pump | |
| 602,556 | Apr. 19, 1898 | T.M. Doyle | Gas or Gasolene Engine | ||
| 655,172 | Jul. 31, 1900 | W.S. Olds | Carbureter | ||