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| Patents for J. R. Brown & Sharpe | |||||
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| Number | Date | Patentee | Title | Type | |
| 9,089 | Jul. 06, 1852 | N. Ames | Center Square for Finding the Center of a CIrcle | center squares | |
| 46,521 | Feb. 21, 1865 | J.R. Brown | Improved Milling Machine | milling machines | |