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US Patent: 497,802
Combined Trammel & Calipers
Patentee: Emerann Lindner (exact or similar names) - Akron, OH USPTO Classifications: 33/27.032, 33/27.033 Tool Categories: layout tools : compasses : trammels layout tools : calipers Assignees: None Manufacturer: Not known to have been produced Witnesses: P. H. Hoffman J. V. Welsh	Patent Dates: Applied: Dec. 05, 1892 Granted: May 23, 1893 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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