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US Patent: 1,404,794
Beam Compass
Patentee: Charles C. Reitenbaugh (exact or similar names) - Rock Island, IL USPTO Classifications: 33/27.03 Tool Categories: layout tools : compasses : trammels Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Jun. 04, 1920 Granted: Jan. 31, 1922 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Ralph Brendler
Description: This draftsman's compass features a micro-adjust for one leg and a quick-change mechanism for the pencil lead.

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