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US Patent: 558,773
Attachment for Calipers
Patentee: David Stoner Byer (exact or similar names) - Roadside, Franklin County, PA USPTO Classifications: 33/558.3 Tool Categories: layout tools : calipers Assignees: None Manufacturer: Not known to have been produced Witnesses: J. A. Saul Elizabeth S. Poole S. W. Cunningham T. S. Cunningham	Patent Dates: Applied: Jun. 25, 1895 Granted: Apr. 21, 1896 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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