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| Patents for George O. Willet | |||||
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| Number | Date | Patentee | Title | Type | |
| 585,384 | Jun. 29, 1897 | J.W. Hawkins | Drill-press | drill presses | |
| 679,241 | Jul. 23, 1901 | H.W. Oster | Locking mechanism for die-heads | taps and dies | |