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US Patent: 128,417
Improvement in Combined Rules and Dividers
Patentee: Robert Nichol (exact or similar names) - Rockford, IL USPTO Classifications: 33/471, 33/558.01 Tool Categories: layout tools : compasses : dividers Assignees: Robert Nichol - Rockford, IL Edwin F. Thomas - Rockford, IL Manufacturer: Not known to have been produced Witnesses: G. W. Ford Wm. T. Skiff Alex Mahon H. H. Doubleday	Patent Dates: Granted: Jun. 25, 1872 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Ralph Brendler
Description: This patent sticks a pair of marking points in the end of a standard boxwood folding rule, to allow it to be used as dividers.

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