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| All Patents in class 30/164.6 | |||||
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| Number | Date | Patentee | Title | Type | |
| 85,217 | Dec. 22, 1868 | G.L. Cummings | Improved ice-cutter | ||
| 281,644 | Jul. 17, 1883 | A.C. Rex | Ice pick or cutter | ice chisels | |