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| Patents for David Lanum | |||||
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| Number | Date | Patentee | Title | Type | |
| 477,972 | Jun. 28, 1892 | F.M. Teeguarden | Sawing-machine | circular ripsaws | |
| 502,838 | Aug. 08, 1893 | F.M. Teeguarden | Sawing-machine | circular ripsaws | |