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US Patent: 384,971
Spring Dividers
Patentee: James F. Guthrie, Jr. (exact or similar names) - Somerville, MA USPTO Classifications: 33/558.07 Tool Categories: layout tools : compasses : dividers Assignees: James F. Guthrie, Jr. - Somerville, MA Thomas C. Ashley - Boston, MA Manufacturer: Not known to have been produced Witnesses: Edward S. Beach John R. Snow	Patent Dates: Applied: Mar. 08, 1888 Granted: Jun. 26, 1888 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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