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| Patents for Manassah Andrews | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 1,457 | Dec. 31, 1839 | M. Andrews, J. Sproat | Manner of relieving the collars of circular saws from the friction occasioned by the article sawed | |
 | 5,087 | Apr. 24, 1847 | M. Andrews | Bitstock | |