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| Patents for Henry R. Huebner | |||||
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| Number | Date | Patentee | Title | Type | |
| 65,598 | Jun. 11, 1867 | E.S. Piper | Improvement in hardening saws | tool making machines | |
| 78,915 | Jun. 16, 1868 | E.C. Atkins | Improvement in machines for polishing metal plates | tool making machines | |