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| All Patents in class 173/31 | |||||
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| Number | Date | Patentee | Title | Type | |
| 47,727 | May 16, 1865 | W.S. Hunter, S.R. Hunter | Boring Artesian Wells | well drilling machines | |
| 543,625 | Jul. 30, 1895 | R.H. Henderson, J.G. Henderson | Machine for Boring Joists for Electric Wiring | portable timber borers | |
| 1,276,167 | Aug. 20, 1918 | S.K. Brown | Surface Finishing Machine | ||
| 2,423,821 | Jul. 15, 1947 | E.P. Anstett | Flooring nailer | nailing machines | |