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| Patents for John S. Alcorn | |||||
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| Number | Date | Patentee | Title | Type | |
| 325,229 | Sep. 01, 1885 | J.S. Alcorn | Machinist's Planer | metal planers | |
| 590,695 | Sep. 28, 1897 | J.S. Alcorn | Bicycle Crank Shaft | bicycles and tricycles | |
| 1,354,937 | Oct. 05, 1920 | J.S. Alcorn | Differential gearing | motor vehicle gearing | |
| CA-222,025 | Aug. 08, 1922 | J.S. Alcorn | Differential gearing | ||