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| Patents for W. F. Chrystal | |||||
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| Number | Date | Patentee | Title | Type | |
| 233,306 | Oct. 12, 1880 | R. Weir | Log-canter | sawmill log handling | |
| 310,321 | Jan. 06, 1885 | A. Rodgers | Edging-cutter | circular ripsaws | |