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| Patents for Arthur I. Jacobs | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 709,014 | Sep. 16, 1902 | A.I. Jacobs | Drill-chuck | |
| 911,012 | Jan. 26, 1909 | A.I. Jacobs | Chuck | ||
 | 933,179 | Sep. 07, 1909 | A.I. Jacobs | Chuck | |
| 1,123,541 | Jan. 05, 1915 | A.I. Jacobs | Chuck | ||