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| Patents for E. P. Hough | |||||
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| Number | Date | Patentee | Title | Type | |
| 282,435 | Jul. 31, 1883 | E.F. Barnes | Pipe Cutter | pipe cutters | |
| 287,899 | Nov. 06, 1883 | E.F. Barnes | Pipe-cutter | pipe cutters | |
| 307,163 | Oct. 28, 1884 | G.A. Barnes, E.F. Barnes | Pipe Tongs or Wrench | pipe wrenches | |