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| Patents for Thomas Cumming Robertson | |||||
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| Number | Date | Patentee | Title | Type | |
| CA-32,713 | Nov. 02, 1889 | T.C. Robertson, A.G. Gourlay | Wood planing machine | wood planers | |
| CA-48,998 | May 21, 1895 | T.C. Robertson, J. McElroy | Sectional feed roller and pressure bar for planers | wood planers | |