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| Patents for Henry G. Barr | |||||
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| Number | Date | Patentee | Title | Type | |
| 575,319 | Jan. 19, 1897 | H.G. Barr | Cutter and Reamer Grinder | cutter grinding machines | |
| 665,381 | Jan. 01, 1901 | H.G. Barr | Upright drilling-machine | drill presses | |