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| Patents for John F. Crowell | |||||
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| Number | Date | Patentee | Title | Type | |
| 737,235 | Aug. 25, 1903 | W.H. Hobby | Machine for making saddle-seats for chairs | chair maker | |
| 895,105 | Aug. 04, 1908 | A.E. Newton | Driving-gearing for upright drills | drill presses | |