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| Patents for John F. Haskins | |||||
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| Number | Date | Patentee | Title | Type | |
| 111,248 | Jan. 24, 1871 | S.W. Putnam, Jr. | Improvement in machines for cutting screw-threads on bolts | metal threading machines | |
| 201,178 | Mar. 12, 1878 | J.F. Haskins | Device for Transmitting Power | industrial machine pulleys and belt drive mechanisms | |