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| Patents for George Rowbottom | |||||
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| Number | Date | Patentee | Title | Type | |
| 609,836 | Aug. 30, 1898 | G. Rowbottom | Drop Hammer | drop hammers | |
| 624,101 | May 02, 1899 | D.C. Griggs, G. Rowbottom | Drop Hammer | drop hammers | |