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| Patents for Hartley W. Bartlett | |||||
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| Number | Date | Patentee | Title | Type | |
| 954,661 | Apr. 12, 1910 | A.W. Whitcomb | Power-transmission device | industrial machine clutches | |
| 1,242,583 | Oct. 09, 1917 | F.K. Hendrickson, A.E. Newton | Lathe | metal lathes | |