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| All Patents in class 30/308.1 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,905,214 | Sep. 22, 1959 | T.J. Tretheway | Aluminum Survival Hatchet | axes | |
| 3,735,434 | May 29, 1973 | H.L. Pemberthy | Ice Axe | ice axes | |
| 4,433,709 | Feb. 28, 1984 | L.W. Porter | Drywall hatchet | ||