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| Patents for Walter Rowbotham | |||||
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| Picture | Number | Date | Patentee | Title | |
| 574,762 | Jan. 05, 1897 | W. Rowbotham | Oil, Gas or the Like Engine | ||
| 595,497 | Dec. 14, 1897 | W. Rowbotham | Oil, Gas or Like Engine | ||