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US Patent: 274,099
Saw-mill dog
Patentees: Frank M. Underwood (exact or similar names) - Columbus, OH Ackber O. Mitchell (exact or similar names) - Columbus, OH John Ackerman (exact or similar names) - Columbus, OH USPTO Classifications: 269/54.2 Tool Categories: woodworking machines : sawmills : sawmill dogs Assignees: None Manufacturer: Not known to have been produced Witnesses: J. H. Bayes C. C. Shepherd	Patent Dates: Applied: Jan. 20, 1883 Granted: Mar. 20, 1883 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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