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| Patents for Walter C. Barnhart | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,169,377 | Jan. 25, 1916 | W.C. Barnhart | Grinding-machine | bandsaw accessories | |
| 1,394,704 | Oct. 25, 1921 | W.C. Barnhart | Pulley-grinding machine | bandsaw accessories | |