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| All Patents of Type: pick axes | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,433X | Jan. 15, 1822 | L. Baker | Pick axe | pick axes | |
| RE1,304 | Apr. 29, 1862 | J.E. Emerson | Pickaxe handle | pick axes | |
| 434,896 | Aug. 19, 1890 | W.F. Walker | Pick | pick axes | |
| 1,010,755 | Dec. 05, 1911 | F.S. Harrington | Pick | pick axes | |