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US Patent: 90,679
Improvement in barrel-staves
Patentee: Charles Murdock (exact or similar names) - Hartford, CT USPTO Classifications: 217/88 Tool Categories: woodworking machines : specialty woodworking machines : barrel making machines trade specific : cooper Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Granted: Jun. 01, 1869 Patent Pictures: [ 1 | 2 ] USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin
Description: The innovation here is a barrel stave sawn so that the radius of curvature at the stave tip is smaller than at the center of the stave.

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