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| Patents for William Wallace Grant | |||||
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| Picture | Number | Date | Patentee | Title | |
| 497,239 | May 09, 1893 | W.W. Grant | Gas Engine | ||
| 514,359 | Feb. 06, 1894 | W.W. Grant | Vapor Gas Engine | ||
| 553,460 | Jan. 21, 1896 | W.W. Grant | Gas or Vapor Engine | ||
| 553,488 | Jan. 21, 1896 | W.W. Grant | Gas Engine | ||