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| Patents for D. C. Donnellan | |||||
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| Number | Date | Patentee | Title | Type | |
| 114,779 | May 16, 1871 | J.E. Donaldson | Scratchstock | scratch beaders | |
| 119,156 | Sep. 19, 1871 | M. Kremser | Improvement in Iron Planers | metal planers | |