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| Patents for Robert H. Roy | |||||
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| Number | Date | Patentee | Title | Type | |
| 347,854 | Aug. 24, 1886 | W. Wicke | Log-dressing machine | veneer machines | |
| 347,942 | Aug. 24, 1886 | D. Leary | Mandrel for circular saws | circular saws | |