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Patents for William C. Burch | |||||
Number | Date | Patentee | Title | Type | |
78,183 | May 26, 1868 | W.C. Burch | Improved hand-drill | hand drills | |
134,355 | Dec. 31, 1872 | W.C. Burch | Drills for Drilling Metals | ratchet drills |