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US Patent: 129,349
Calipers For Taper Surfaces
Patentee: Ebenezer C. C. Kellogg (exact or similar names) - Hartford, CT USPTO Classifications: 33/456, 33/532, 33/812 Tool Categories: layout tools : measurement gauges Assignees: Ebenezer C. C. Kellogg - Hartford, CT Walter P. Chamberlain - Hartford, CT Norman S. Brewer - Hartford, CT Manufacturer: Not known to have been produced Witnesses: George G. Sill E. A. Kunkel	Patent Dates: Granted: Jul. 16, 1872 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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