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| Patents for L. C. Proctor | |||||
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| Number | Date | Patentee | Title | Type | |
| 270,743 | Jan. 16, 1883 | W.A. Clarke | Exhaust-nozzle for steam-engines | steam engines | |
| 270,875 | Jan. 16, 1883 | W.A. Clarke | Steam-engine cylinder | steam engine cylinders | |
| 601,851 | Apr. 05, 1898 | A.B. Frack | Wrench | screw adjust wrenches | |