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US Patent: 619,813
Beam Compass
Patentees: Robert Chester Weishampel (exact or similar names) - Baltimore, MD Frank K. Duncan (exact or similar names) - Baltimore, MD USPTO Classifications: 33/27.03 Tool Categories: layout tools : compasses : trammels Assignees: None Manufacturer: Not known to have been produced Witnesses: Fenton S. Belt J. Ahlbilson A. E. Shinn Frank X. Ward	Patent Dates: Applied: May 13, 1898 Granted: Feb. 21, 1899 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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