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US Patent: 948,172
Device for Dividing Circles or Arcs of Circles
Patentee: Albert D. Ide (exact or similar names) - Chicago, IL USPTO Classifications: 33/27.03 Tool Categories: layout tools : compasses Assignees: None Manufacturer: Not known to have been produced Witnesses: William F. Barnes Frank P. Leffingwell J. L. Jenkins M. J. Miller	Patent Dates: Applied: Jun. 18, 1908 Granted: Feb. 01, 1910 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Ralph Brendler
Description: This is a beam compass with an additional attachment for measuring the arc as it draws.

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