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| Patents for Defiance Machine Works | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,337,143 | Apr. 13, 1920 | W.F. McCarty | Tenoning and equalizing machine | tenoning machines | |
| D146,608 | Apr. 15, 1947 | J.M. Little | Design for a drill press | drill presses | |