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| Patents for Harry B. Barrett | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,124,603 | Jul. 26, 1938 | H.B. Barrett | Brake Gauge | special purpose gauges | |
| 2,254,508 | Sep. 02, 1941 | H.B. Barrett | Honing Tool | honing tools | |