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| Patents for Robert M. Lafferty | |||||
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| Number | Date | Patentee | Title | Type | |
| 95,490 | Oct. 05, 1869 | R.M. Lafferty | Improvement in sawing-machine | tablesaws | |
| 118,806 | Sep. 12, 1871 | R.M. Lafferty, E.P. Smith | Improvement in augers | hollow bits | |