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US Patent: 421,896
Machine for holding and sharpening insertible saw-teeth
Patentee: Herman Bergstrom (exact or similar names) - Big Wausaukee, WI USPTO Classifications: 451/279 Tool Categories: woodworking machines : specialty woodworking machines : tool making machines Assignees: George M. Beach - Big Wausaukee, WI Herman Bergstrom - Big Wausaukee, WI Manufacturer: Not known to have been produced Witnesses: Fred Irwin John W. Monroe	Patent Dates: Applied: Nov. 06, 1889 Granted: Feb. 25, 1890 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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