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| Patents for Henry J. Lewis | |||||
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| Number | Date | Patentee | Title | Type | |
| 6,819 | Oct. 23, 1849 | W. Lewis, W.H. Lewis | Apparatus for holding daguerrotype-plates | ||
| 23,428 | Mar. 29, 1859 | H.J. Lewis | Camera-stand | camera tripods | |
| 65,097 | May 28, 1867 | J.H. Lewis | Improved vise | bench vises | |