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| Patents for Benjamin Arnold | |||||
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| Number | Date | Patentee | Title | Type | |
| 118,178 | Aug. 22, 1871 | B. Arnold | Improvement in Twist-Drills | twist drill bits | |
| 123,971 | Feb. 27, 1872 | G.R. Babbitt | Improvement in Piston Packing | piston ring and packing | |
| 180,454 | Aug. 01, 1876 | G.C. Bowen | Improvement in miter-boxes | miter boxes | |
| 273,784 | Mar. 13, 1883 | S.E. Waterman, F.H. Kelley | Surface Gage | surface gauges | |
| 604,946 | May 31, 1898 | A.L. Stoddard | Guide and guard for variety molding-machines | wood shapers | |