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| Patents for Columbus Munn | |||||
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| Number | Date | Patentee | Title | Type | |
| 153,365 | Jul. 21, 1874 | C. Munn | Improvement in machines for cutting veneers | veneer machines | |
| 155,541 | Sep. 29, 1874 | C. Munn | Improvement in veneer-cutters | veneer machines | |
| 173,986 | Feb. 22, 1876 | C. Munn | Improvement in machines for cutting veneers | veneer machines | |