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| Patents for Lucius J. Knowles | |||||
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| Number | Date | Patentee | Title | Type | |
| 17,433 | Jun. 02, 1857 | L.J. Knowles | Faucet | ||
| 18,592 | Nov. 10, 1857 | L.J. Knowles | Lifting Jack | jack screws | |
| 275,393 | Apr. 10, 1883 | L.J. Knowles | Machine for Forming Key-Seats in Hubs of Gears, &c. | metalworking machines | |