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US Patent: 531,931
Leveling Instrument
Patentee: Erasmus F. Hargrett (exact or similar names) - Boston, Thomas County, GA USPTO Classifications: 33/388 Tool Categories: layout tools : levels : inclinometers Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Oct. 19, 1893 Granted: Jan. 01, 1895 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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