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| Patents Granted on 1826-09-15 | |||||
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| Number | Date | Patentee | Title | Type | |
| 4,535X | Sep. 15, 1826 | D. Phelps | Printing press | printing presses | |
| 4,536X | Sep. 15, 1826 | B. Overman | Sawing circular timber | sawmills | |
| 4,537X | Sep. 15, 1826 | J.J. Giraud | Wheels for propelling steam boats | steamboats | |
| 4,538X | Sep. 15, 1826 | J. Price | Improvement called the portable endless rail way | ||