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| Patents for Fred K. Hendrickson | |||||
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| Number | Date | Patentee | Title | Type | |
| 945,947 | Jan. 11, 1910 | F.K. Hendrickson | Turret-lathe | turret lathes | |
| 1,019,639 | Mar. 05, 1912 | F.K. Hendrickson | Belt-tightener for drills | drill presses | |
| 1,213,237 | Jan. 23, 1917 | A.E. Newton, F.K. Hendrickson | Drop-table mechanism for milling-machines | milling machines | |
| 1,242,583 | Oct. 09, 1917 | F.K. Hendrickson, A.E. Newton | Lathe | metal lathes | |