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| Patents for John P. Webster | |||||
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| Number | Date | Patentee | Title | Type | |
| 363,757 | May 24, 1887 | T.H. Noxon, J. Noxon | Spring locking device for drill-hoes and cultivator-teeth | ||
| 363,758 | May 24, 1887 | T.H. Noxon, J. Noxon | Seeding-machine | ||
| 363,759 | May 24, 1887 | T.H. Noxon, J. Noxon | Spring locking device for drill-hoes and cultivator-teeth | ||
| 437,234 | Sep. 30, 1890 | J. Noxon | Seeding-machine | ||