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| Patents for John N. Farrar | |||||
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| Number | Date | Patentee | Title | Type | |
| 99,547 | Feb. 08, 1870 | J.N. Farrar | Improved railway-car wheel | railroad car wheels | |
| 109,310 | Nov. 15, 1870 | J.N. Farrar | Improvement in railway-car wheel | railroad car wheels | |
| 130,118 | Aug. 06, 1872 | J.N. Farrar | Improvement in elastics packing for car-wheels | railroad car wheels | |