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| Patents for Charles K. Davis | |||||
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| Number | Date | Patentee | Title | Type | |
| 724,963 | Apr. 07, 1903 | A.G. Spaulding | Calipers | measurement gauges | |
| 912,893 | Feb. 16, 1909 | A. Runnion | Reversing Gear for Engines | steam engine valves | |