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| Patents for Ross Langill | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,601,219 | Sep. 28, 1926 | R. Langill | Log-sawing machine | band sawmills | |
| 1,832,908 | Nov. 24, 1931 | S.B. Langill, R. Langill | Tapering mechanism for sawmill knees | sawmill carriages | |
| 1,847,657 | Mar. 01, 1932 | S.B. Langill, R. Langill | Sawmill dog | sawmill dogs | |