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| Patents for Prescott Cot. | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,637,907 | Aug. 02, 1927 | R.E. Langill, W.B. Grueter | Sawmill dog | sawmill dogs | |
| 1,769,927 | Jul. 08, 1930 | R.E. Langill, W.B. Grueter | Mechanism for controlling the press rolls or like elements of edgers | circular ripsaws | |