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US Patent: 72,640
Improvement in stave-machines
Patentee: William E. Hopkins (exact or similar names) - Parkman, OH USPTO Classifications: 83/410.8 Tool Categories: trade specific : cooper woodworking machines : specialty woodworking machines : shingle machines Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Granted: Dec. 24, 1867 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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