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| Patents for Frank H. Arnold | |||||
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| Number | Date | Patentee | Title | Type | |
| 118,178 | Aug. 22, 1871 | B. Arnold | Improvement in Twist-Drills | twist drill bits | |
| 180,454 | Aug. 01, 1876 | G.C. Bowen | Improvement in miter-boxes | miter boxes | |