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| Patents for Louis Duhme | |||||
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| Number | Date | Patentee | Title | Type | |
| 252,570 | Jan. 17, 1882 | J.R. Woodrough | Handsaw | special purpose saws | |
| 252,571 | Jan. 17, 1882 | J.R. Woodrough | Backsaw | backsaws | |
| 747,036 | Dec. 15, 1903 | G.H. Bishop | Trowel-Handle | ||