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US Patent: 278,225
Calipers
Patentees: Robert G. Henry (exact or similar names) - Waterbury, CT Ralph Crittenden (exact or similar names) - Hartford, CT USPTO Classifications: 33/558.07 Tool Categories: layout tools : calipers Assignees: None Manufacturer: Not known to have been produced Witnesses: Charles G. Root William A. Hollman Samuel O. Prentiss Stephen Terry William A. Lowe William B. Herbert	Patent Dates: Applied: Mar. 22, 1883 Granted: May 22, 1883 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens
Description: C. Chitchester - patent attorney

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