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| Patents for Amasa A. Redfield | |||||
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| Number | Date | Patentee | Title | Type | |
| RE2,600 | May 14, 1867 | J. Balmore | Improvement in Pipe-Tongs and Cutter | pipe tongs | |
| 69,009 | Sep. 17, 1867 | W.S. Mead | Improvement in mechanical movements | woodworking machine mechanisms | |