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| Patents for Robert L. Fenwick | |||||
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| Number | Date | Patentee | Title | Type | |
| 283,929 | Aug. 28, 1883 | D. Shortsleeve | Machine for Sawing Stone | stonemason | |
| 315,848 | Apr. 14, 1885 | D. Shortsleeve | Sand and Water Feed Mechanism | stonemason | |