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| Patents for Henry Stewart | |||||
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| Number | Date | Patentee | Title | Type | |
| 385,018 | Jun. 26, 1888 | W.B. Wiswall, H. Stewart | Spring-hammer for blacksmiths | foot operated hammers | |
| 606,692 | Jul. 05, 1898 | H. Stewart | Box-forming machine | box making machines | |