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US Patent: 359,019
Rock Drill
Patentee: John C. Hyndman (exact or similar names) - Mound Valley, Labette County, KS USPTO Classifications: 173/148, 173/32, 408/129, 408/72R Tool Categories: specialty tools : stoneworking tools : quarrying tools Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Jul. 03, 1886 Granted: Mar. 08, 1887 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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