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US Patent: 230,420
Combined Calipers & Scriber
Patentee: Manuel W. Kahle (exact or similar names) - Duke Centre, PA USPTO Classifications: 112/75, 33/674 Tool Categories: layout tools : calipers layout tools : scribes Assignees: Martha Jane Kahle - Duke Centre, PA Manufacturer: Not known to have been produced Witnesses: Michael J. Stark Frank Hirsch	Patent Dates: Applied: May 17, 1880 Granted: Jul. 27, 1880 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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