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US Patent: 631,987
Dividers
Patentee: Frederick H. De Tray (exact or similar names) - Quincy, IL USPTO Classifications: 33/558.02 Tool Categories: layout tools : compasses : dividers Assignees: Eugene B. Potter - Quincy, IL Adam Rohrbough - Quincy, IL Manufacturer: Unknown Witnesses: John F. Deufferwiel C. E. Doyle Thomas Rd. Sledding Adam Rohrbough	Patent Dates: Applied: Mar. 12, 1898 Granted: Aug. 29, 1899 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens
Description: C. A. Knowles - patent attorney

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