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| Patents for Seymour A. Ayres | |||||
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| Picture | Number | Date | Patentee | Title | |
| 632,509 | Sep. 05, 1899 | S.A. Ayres | Carbureting Device for Gas or Explosive Engines | ||
 | 632,888 | Sep. 12, 1899 | S.A. Ayres | Gas Engine | |