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| Patents for N. W. Spaulding & Bros. | |||||
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| Number | Date | Patentee | Title | Type | |
| 33,270 | Sep. 10, 1861 | N.W. Spaulding | Improvement in saws | insertable saw teeth | |
| RE1,456 | Apr. 21, 1863 | N.W. Spaulding | Improvement in setting teeth in saws and saw-plates | insertable saw teeth | |