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US Patent: 259,164
Calipers
Patentee: George W. Jopson (exact or similar names) - Meriden, CT USPTO Classifications: 33/485, 33/558.01 Tool Categories: layout tools : calipers rules Assignees: None Manufacturer: Not known to have been produced Witnesses: George R. Dessureau Chas. A. Shaw J. H. Shumway Jos. C. Earle	Patent Dates: Applied: Nov. 28, 1881 Granted: Jun. 06, 1882 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Ralph Brendler
Description: These calipers feature a built-in rule to allow a turner to measure the distance to a shoulder.

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