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| Patents for Henry W. Mason | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 16,900 | Mar. 24, 1857 | G.C. Taft | Feeding Drill-Shafts | |
 | 17,609 | Jun. 16, 1857 | G.C. Taft | Improved Screw-Wrench | |