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| Patents for James Rennie | |||||
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| Number | Date | Patentee | Title | Type | |
| 8,241X | Jun. 09, 1834 | J. Rennie | Ink coloring matter, mordant, or other liquids supplying or steeping | ||
| 8,352X | Aug. 09, 1834 | J. Rennie | Printing with two or more colors at one impression | printer | |