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| Patents for Charles H. Barnum | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 127,211 | May 28, 1872 | J.G. Aram | Improvement in machines for turning carriage-axles | |
 | 183,632 | Oct. 24, 1876 | W.C. Brockus, C.H. Barnum | Improvement in planing-machines | |